Chinertown

Chinese Carbon Road Bikes => Road Bike Frames, Wheels & Components => Topic started by: Serge_K on August 04, 2025, 01:07:36 PM

Title: Long Teng / Mondince aero frame FM126
Post by: Serge_K on August 04, 2025, 01:07:36 PM
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Title: Re: Indiegogo Mondince aero frame FM126
Post by: SillyMochi on August 04, 2025, 02:28:04 PM
Not me, but "KopytoNieBladzi" ordered the GV/GR201 from them a while back; see post https://chinertown.com/index.php/topic,4724.msg69549.html#msg69549
They got around the MOQ by asking them for a sample frame iirc. Might want to reach out to them directly to get more info.

Regarding the campaign, I do like their transparency regarding the carbon layup. Seems legit to me.
Title: Re: Indiegogo Mondince aero frame FM126
Post by: toxin on August 04, 2025, 02:29:25 PM
Geo is on the normal/relaxed side, so won't be one for me. Some provisions for a bottle on the downtube would be good. I like that the back end isn't as unnecessarily chunky as the vb 368. Fork crown's a bit big and the head tube looks to be on the wider side. Target weights seem very ambitious for that price range.

Overall, not bad for what it is, same as the vb 368, will be slower, but likely ride better.

Title: Re: Indiegogo Mondince aero frame FM126
Post by: Tpower59 on August 05, 2025, 08:20:59 AM
Update.
Listing has been updated, clearance is indeed 32C.

Stated clearance is 32mm tyre + 5.5, so 32+11=43mm.

For comparison, my LT268, at the chainstays, is 32.9+5.3*2= 43-44mm. Aka, the same. I would say that my frame is a truly a 32C frame, in that i have ample space to run a 32C tyre that can balloon bigger, fork too.
My fork measures 30+8.2+8.9=47mm.
My rear rim measures 34mm, which means i can run Peter's 36mm rim w a 30 or 32C tyre w/o a problem. Which means the same should be possible on this frame as well.
So, this 126 frame is compelling, clearance wise. I wish it were 35C, but being able to run a 30C on a 36mm rim, expecting the tyre to measure around 34mm is compelling. And running a 32C measuring 36mm on that 36mm rim should also work, leaving 3.5mm which, assuming the wheels aren't noodly AF (assumes steel or carbon spokes, not the fabric spokes that Peak Torque tested), there shouldn't be any rub.

So, that's a very good thing in my book, makes the bike future proof enough.

I asked what happens if the project doesnt go ahead, and Jack said they will refund all the money. It sounds pretty evident that they mean business, and they're not playing games. If they gather enough traction, it gets made. If not, they refund the money, and voila.

People will have the option to order the regular seat post, or the 0 offset one.

Very compelling. With the clearance question clarified, (700-150=550) for 550$ you get a frameset (no bars), plus DDP shipping, with better specs than everybody else, pretty much. Velobuild is not monocoque and is only T800 / much heavier, tantan is a clown show, Long teng (and related brands) dont have a modern aero frame, Speeder either; Peter has the gran turismo frameset, but it costs a lot more.

Very compelling indeed. I may buy a few.

What are the alternatives for a ultra light / light aero frame these days ?
Title: Re: Indiegogo Mondince aero frame FM126
Post by: casper.f on August 05, 2025, 08:43:42 AM
"3.If we can not get the goal to make this model real, we will refund your the money."
From the indiegogo


Is there any form of insurance or protection for backers in case things go wrong?
Would Indiegogo intervene if, for example, the project fails to deliver as promised?
What’s stopping someone from just sending a random frame to fulfill the commitment?

I genuinely love this concept, but I'm hesitant to invest a significant amount of money in a frame that hasn’t gone through even a single lay-up iteration yet.
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Motus on August 05, 2025, 09:40:12 AM
The x67 is another lightweight aero frame.. geometry and price is quite similar.

Obviously, it's tantan...  ;D
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Tpower59 on August 05, 2025, 11:25:54 AM
The x67 is another lightweight aero frame.. geometry and price is quite similar.

Obviously, it's tantan...  ;D

Hum quite heavy
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Motus on August 05, 2025, 11:51:37 AM
Hum quite heavy


this is estimated 760g raw without hardware +100gr ud matt with hardware... the x67 in the specific discussion is given for 758g raw and 920g painted with all the hardware (inc. the metal "spoiler"..)
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Sebastian on August 05, 2025, 12:09:09 PM
This is a proper cool and exciting project. I’m not really in the market for a new frameset. But if I was…
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Tpower59 on August 05, 2025, 03:57:22 PM

this is estimated 760g raw without hardware +100gr ud matt with hardware... the x67 in the specific discussion is given for 758g raw and 920g painted with all the hardware (inc. the metal "spoiler"..)

In size 45 🤣

Title: Re: Indiegogo Mondince aero frame FM126
Post by: meysow on August 05, 2025, 04:27:20 PM
The project is really cool, the frame ticks a lot of boxes and is quite inexpensive considering the features. It's truly appealing.

The problem for most people is to give money to an entity that you have no way to force to give it back to you in case things go bad, is kinda scary, cause let's be realistic, if they want to run with the money, they can, and we can't really do anything about it, do we ?

If so, this means the only factor that will "prevent" them from doing so is how much you trust them.
You sure seems to have a good overview of the industry, quite the experience, and you seem positive that this is legit, so I guess this is something.

PS: why would you want to buy a few ? To support the project or are going to resale them ? If so please make a branding like "ChinerSerge" or something, that would be a banger !
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Motus on August 05, 2025, 04:37:50 PM
In size 45 🤣

I didn't say it was lighter.. but for an aero frame it's not heavy.. most weigh around 1000/1100 gr.

Anyway, this Mondince is definitely an interesting project.
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Da11as on August 06, 2025, 01:22:46 AM
The x67 is another lightweight aero frame.. geometry and price is quite similar.

Obviously, it's tantan...  ;D
I don't get why it is so common to call SL8 (and its clones) aero frames. It is an all-rounder, both according to marketing of Specialized and Tour tests. Of course this has to be lighter then a pure aero plank of wood.
Title: Re: Indiegogo Mondince aero frame FM126
Post by: toxin on August 06, 2025, 02:10:43 AM
Because the standards of aero for cheap chinese frames are on the floor
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Requiem84 on August 06, 2025, 02:13:37 AM
Wow, this almost looks too good to be true.

Specwise at high end Western level, but for a Chinese price.
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Motus on August 06, 2025, 02:20:57 AM
I don't get why it is so common to call SL8 (and its clones) aero frames. It is an all-rounder, both according to marketing of Specialized and Tour tests. Of course this has to be lighter then a pure aero plank of wood.

The sl8 clone is the x68
the x67 is this:
https://chinertown.com/index.php/topic,5529.0.html
Title: Re: Indiegogo Mondince aero frame FM126
Post by: voidptr on August 06, 2025, 05:35:02 AM
I once backed a small project on Indiegogo. It was never fulfilled, and I never got a refund.
It was only $75 and I did not really care, but for years I kept getting excuse-filled emails from the project manager.
Just constant reminders of my terrible decision to support it in the first place.
There's absolutely no way I'd ever support a frameset on Indiegogo from some random Chinese manufacturer.
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Requiem84 on August 06, 2025, 07:37:26 AM
I’m considering one.
Title: Re: Indiegogo Mondince aero frame FM126
Post by: casper.f on August 06, 2025, 08:25:01 AM
Geometry looks damn close to the Tarmac SL8
-Same stack and reach
-same chainstay, toptube,..
-slight variation in rake, bb drop and wheelbase (splitting hairs)
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Sander2177 on August 06, 2025, 08:56:50 AM
Nice work, Serge — looks like it could be worth a punt.

Even if you manage to get hold of the frame, the big question is whether the quality will be good enough to make it usable. There’s obviously a risk involved, but at that price, it might be worth the gamble.

You could consider paying by credit card — that might offer some protection and a potential route to get your money back if things go sideways.

If they pull it off — the price, the claimed spec, and a decent standard of quality — it could genuinely be the bargain of the century.

But you know what they say… if it sounds too good to be true, it probably is.
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Ludo on August 06, 2025, 09:35:34 AM
If they are an existing OEM, can they provide references of what they produced and sold?
Title: Re: Indiegogo Mondince aero frame FM126
Post by: casper.f on August 06, 2025, 10:48:43 AM
Geometry looks damn close to the Tarmac SL8
The claimed weight is also pretty impressive

Some comparisons I made with some rough assumptions
Notes:
-The FM126 is a size "S" while the SL8 is a 56, so i assumed the small was 49 and added 100 grams of carbon and 10 grams of paint
-Mondince claims only a 100gr. for paint+hardware, which seems very low, so i made the assumption of 100gr for Ti HW and another 50 for "UD Matt".

VersionS-W SL8 (FACT 12r)Non-S-W SL8 (FACT 10r)FACT 10r+ S-W HW|Small FM126 (Ti HW)56 est. FM126 (Ti HW)
Bare frame (unpainted)645 [±15g]800 [±20g]800 [±20g]|760 [±30g]860 [±30g]
Hardware121 (Ti axles + clamp)167 (Steel HW)121 (Ti HW)|100 (Ti HW)100 (Ti HW)
Paint (basic)+65+65+65|+50 (UD matte)+60 (UD matte)
Complete frame (basic)8311,032986|9101,020

All of the weights are from specialized themself, weightweenies forum, Mondince's site and their indiegogo.

After doing this research 3 options are possible:
-I had a blackout and all the figures listed are total BS
-Mondince is quoting an impossible weight in order to get more support for their indiegogo
-This is an amazing bike, industry leading for a low price

Imo its a bit of a mix from all of the above

Title: Re: Indiegogo Mondince aero frame FM126
Post by: Sakizashi on August 06, 2025, 11:13:50 AM
Realistically, I am seeing a total value of closer to $900 for this frame, using the LTK266DSL as a benchmark. It is a similarly "high-end" blend of CF. Basic Ti Thru Axles, like these, are about $85 a set. Shipping costs around $140-$150, and the Ti hardware is likely around $20. It's a good deal, but probably closer to $100-150 discount IMO.

Mondinice, as a brand, has numerous listings on Alibaba. I think they make the Onrii frames? And maybe a few other AliX brands. I don't think I have ever seen any of their molds used by higher-end brands.

The frame itself is a bit of a miss for me. There is nothing new or inventive here, and I am a huge skeptic of the eye test for aero when it comes to deep tubes and think any marginal gain they provide can easily be offset by poorly performing shapes. The only eye test I think correlates well with actual aero performance is examining the bike's head-on and noting the reduction in frontal area. I am biased to low yaws since the testing I have done has always been outside the wind tunnel and until recently without real-time airspeed.

The geometry is fine for an aero bike. Nothing there either; they played it safe with bikes like the S5 or Y1RS. Speaking of those bikes, I would love to see a lower-cost frame set with a bayonet fork, like those, especially if it took a regular stem, like the Incolor Intropy SSR.

I do love how real they are about both the layup and acknowledging that they are on Indiegogo to bring this bike to life because the industry is hard right now.

Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: w1ll337 on August 07, 2025, 08:31:10 AM
Now we just need to know when it will be available to buy directly and if the price will be much higher than the Indiegogo campaign price. I want this frame too.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Requiem84 on August 07, 2025, 09:02:13 AM
Is there a way too if they’re en route to get the required number of buyers?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: BeeMC on August 07, 2025, 09:45:17 AM
This would be a good alternative for those interested in the QUICK PRO ER. Geometry appears similar at least in a size 52.

I would buy it if a version without the Mondice logo was made available. It would be nice if LT were to sell the frame directly just like the 266-D-SL that Mondice/Parleants/Tideace also sell under different model names.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 07, 2025, 10:19:39 AM
This would be a good alternative for those interested in the QUICK PRO ER. Geometry appears similar at least in a size 52.

I would buy it if a version without the Mondice logo was made available. It would be nice if LT were to sell the frame directly just like the 266-D-SL that Mondice/Parleants/Tideace also sell under different model names.

I am interested in an Quick Pro ER alternative as I doubt I can ride the frame with 191 cm with just 565 mm stack in the largest size. But I am a little aware of the story behind this crowdfunding thing.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Ludo on August 07, 2025, 10:55:44 AM
This would be a good alternative for those interested in the QUICK PRO ER. Geometry appears similar at least in a size 52.

I would buy it if a version without the Mondice logo was made available. It would be nice if LT were to sell the frame directly just like the 266-D-SL that Mondice/Parleants/Tideace also sell under different model names.

no logo is an option when you check out on indiegogo
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: w1ll337 on August 07, 2025, 11:25:41 AM
I sent a mail to Jackie about the price and him replied...

we will begin the mold in two months. And the first batch will be available in four months.

You can buy directly from us. But the cost will be expensive. It will need USD1098 for frame, fork, seatpost, axles and headset, and shipping cost.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on August 07, 2025, 06:18:20 PM
Uh. This is super tempting. Anyone jumping on the deal?
Serge how tall are you and what frame size are you considering?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: tgarne on August 07, 2025, 11:06:06 PM
Have been looking at this frame a few times, but as a tall guy with long legs I find the larger sizes odd.
Size 61 have only 545 seat tube length and ultra high stack, so a steep slope.
I personally find it not so pretty on an aero frame when the seat post gets too long.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 08, 2025, 08:19:19 AM
I had a shot chat. The seatpost length is 350 mm with min insert 80 mm. They can paint any color also according to the Tideace chart: https://tideacebike.com/pages/customization-color-choice

I am currently on the CR068 frame in size L. With the seatpost length and the low C-T dimensions I think I have no other choice then size 61 with saddle height 802 mm. Or are there other opinions?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on August 08, 2025, 09:11:54 AM
I’ve added the geo chart for the FM126 (size 61) to bike-stats.de — imo the best site for comparing bike geometries.
I used the high-resolution chart from anglecycle.com:
https://www.anglecycle.com/2025-new-udh-hanger-t47-bracket-max-700-32mm-tire-full-carbon-fiber-aero-road-bike-frameset.html (https://www.anglecycle.com/2025-new-udh-hanger-t47-bracket-max-700-32mm-tire-full-carbon-fiber-aero-road-bike-frameset.html)

Here’s the comparison between the SL8 and FM126:
https://www.bike-stats.de/en/geometrie_vergleich?Bike1=Mondince_FM126_2025_61&Bike2=Specialized_S-Works%20Tarmac%20SL8_2024_61 (https://www.bike-stats.de/en/geometrie_vergleich?Bike1=Mondince_FM126_2025_61&Bike2=Specialized_S-Works%20Tarmac%20SL8_2024_61)

The drawings line up perfectly. So, no need to worry about an overly sloping top tube — in size 61, it’s essentially the same as a Tarmac.

Honestly, I’m relieved they played it safe with the geometry instead of trying something unusual. You can say they copied, but bikes like the Ridley Fenix, Factor Ostro, Evolve Cima, and even the new Trek Madone have very similar numbers.
Trek can stick with a horizontal top tube thanks to their Isoflow system, which doesn’t require as much seatpost deflection.
The others are very similar in each aspect
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 08, 2025, 09:36:41 AM
My saddle height is 81cm and i'm on medium frames. Didn't even cross my mind that it wouldn't work. For good measure, I asked Jack, he wrote the post is 400mm length for 54/56/58/61cm. 300mm for 49/52cm.
I wrote that my saddle height is 81cm and i'm looking at a 54. He confirmed it will work.
The seat tube is 5cm shorter than on my 268, i'm going to get a veeeery comfortable ride.

So he told me that seatpost length will be 350 mm - what’s now the right number? 400 mm would for me work aswell.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 08, 2025, 01:50:35 PM
I had contact via WhatsApp to ~Angle/Mondince Cycle. So I ask again referring on the other info.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 09, 2025, 06:23:05 AM
So now I got the info according to Serge „ Yes, we will do 400mm for larger size“
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Gloopann on August 09, 2025, 02:57:25 PM
Do we know if the frame will be compatible with mechanical groupsets or will it be full electronic only? It seems like electronic only on the pictures but I am not 100% sure.
Title: Re: Indiegogo Mondince aero frame FM126
Post by: w1ll337 on August 10, 2025, 09:36:46 AM
Beyond the ones i've mentioned, i'm not too sure. There may be Chinese branded options, but usually one of the following applies: the price point is silly; the geometry is silly (low AF / too long); availability is a mystery.
I posted when the new Van Rysel aero came out, and asked about alternatives, and didn't really go anywhere: https://chinertown.com/index.php/topic,5838.0.html
I did consider a cervelo S5 clone, but tyre clearance is too narrow; i think the new mould fixed that somewhat, but it's not available in clone land afaik . And ofc, there's the question around buying a clone.
And ofc, if we talk clone, there's the Ostro clone, but it's such a mine field with so many people paying top dollars to receive dogs, AND the geometry is more aggressive than i'd like. Although to be fair, given that the Mondince is also lower than i'd like the Ostro is "only" an extra 2mm lower than the Mondince.
And because i've mentioned 2 clones, i havent found a clone of the pinarello X. I guess Peter's Gran Turismo is kind of the closest to that one, because the geometry is more relaxed than the Pinarello F.

And this is why this Mondince looks very interesting right now.

Inputs welcome!

Serge do you think that winspace C5 Aero is an option similar the Mondice? https://www.winspace.cc/products/c5-aero
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 10, 2025, 10:16:37 AM
Winspace quality was bad according to latest buyers here in the forum. Also no UDH and sizing for Chinese market.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 10, 2025, 11:46:27 AM
Yeah but for the larger sizes you stuck at 570 stack. Also no UDH in terms of future proof is a no go. I could not ride the frame. Will later invest in this FM126 frame. My fancy custom paintjob will charge 250 USD extra but I will have to pay it later when the frameset is finally in production.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on August 10, 2025, 04:57:43 PM
And for me that makes winspace an absolute no no: "Support for Up to 32mm Tire Clearance". It doesn't say 32C, but 32mm. The 126 used to say 40mm, which they changed back to 32C. On the 126 you can run a 36 wide rim with a 32C that will measure ~35, no pb. Winspace is explicitly telling you you can't do that. From a future proofing perspective / comfort on an aero bike that is not technically meant to be comfortable like an all rounder or a climber, and because i'm heavy, tyre clearance for me is v important.
Here you are insinuating that the 126 has larger tyre clearance then 32mm measured, right?


My ideal frame is actually that 126 but w more stack and 35C, but it doesn't exist. Peter's frame is like that, but it costs many hundreds more.
But here you say the 126 needs even bigger clearance for your perfect bike?

-I am misinterpreting your post?
-Are you planning to run huge tyres (35mm+ measured)?
-Did you make an error?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: raisinberry777 on August 10, 2025, 06:52:19 PM
I think Serge is using 'C' here (confusingly) to differentiate between the nominal width (i.e. what is printed on the tyre) and the measured width of the tyre (which is often wider on wide rims).
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on August 10, 2025, 11:32:48 PM
Serge. Did you back it?
Im planning on it
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 10, 2025, 11:39:14 PM
As I can see I have the first official claim on Indiegogo  :)
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on August 11, 2025, 03:36:45 AM
Cool. Did you get a 150 usd discount for the 550 usd deal? I can only seem to get the 700 usd deal.
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Vasegaard on August 11, 2025, 05:26:38 AM
Update.
Listing has been updated, clearance is indeed 32C.

Stated clearance is 32mm tyre + 5.5, so 32+11=43mm.

For comparison, my LT268, at the chainstays, is 32.9+5.3*2= 43-44mm. Aka, the same. I would say that my frame is a truly a 32C frame, in that i have ample space to run a 32C tyre that can balloon bigger, fork too.
My fork measures 30+8.2+8.9=47mm.
My rear rim measures 34mm, which means i can run Peter's 36mm rim w a 30 or 32C tyre w/o a problem. Which means the same should be possible on this frame as well.
So, this 126 frame is compelling, clearance wise. I wish it were 35C, but being able to run a 30C on a 36mm rim, expecting the tyre to measure around 34mm is compelling. And running a 32C measuring 36mm on that 36mm rim should also work, leaving 3.5mm which, assuming the wheels aren't noodly AF (assumes steel or carbon spokes, not the fabric spokes that Peak Torque tested), there shouldn't be any rub.

So, that's a very good thing in my book, makes the bike future proof enough.

I asked what happens if the project doesnt go ahead, and Jack said they will refund all the money. It sounds pretty evident that they mean business, and they're not playing games. If they gather enough traction, it gets made. If not, they refund the money, and voila.

People will have the option to order the regular seat post, or the 0 offset one.

Very compelling. With the clearance question clarified, (700-150=550) for 550$ you get a frameset (no bars), plus DDP shipping, with better specs than everybody else, pretty much. Velobuild is not monocoque and is only T800 / much heavier, tantan is a clown show, Long teng (and related brands) dont have a modern aero frame, Speeder either; Peter has the gran turismo frameset, but it costs a lot more.

Very compelling indeed. I may buy a few.

You wrote that you’re able to get it for 550. When I look up their price on indie it’s 700. Was just wondering how you got the 550 price. Thanks in advance 😊
Title: Re: Indiegogo Mondince aero frame FM126
Post by: Tines on August 11, 2025, 05:40:20 AM
You wrote that you’re able to get it for 550. When I look up their price on indie it’s 700. Was just wondering how you got the 550 price. Thanks in advance 😊
It’s a theoretical calculation excluding the shipping
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on August 11, 2025, 05:55:08 AM
Oh right on. My mistake
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 11, 2025, 08:23:14 AM
Just received the info that an update on the frameset will be in about one month.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: BeeMC on August 11, 2025, 08:39:07 AM
Just received the info that an update on the frameset will be in about one month.

What is that update? They will start producing the frame in a month? I was about to order the Quick Pro ER but if this one is available soon I will take it instead.

Thanks.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 11, 2025, 10:48:35 AM
What is that update? They will start producing the frame in a month? I was about to order the Quick Pro ER but if this one is available soon I will take it instead.

Thanks.

Max

Info came via WA. Here is the Indiegogo posting:

„ Hi, everyone. As for the money, please do not worry. If we can not continue this model, we will refund you all. So please do not worry the money will lost.
And we will begin the production of the mold in two month. And we will have first 3D printing frameset in one month. And we will update them.
And we are serious about this project.
And we have warranty for all parts you will got. Please trust us. This will be the best frame and ultra aero frameset you can got. Only one or two Chinese brands have used Monocuque contruction for aero road bike frameset and use Toray T1100 carbon fiber.“
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on August 11, 2025, 11:35:12 AM
@Serge, regarding tire clearance. 40mm between the stays might be 32mm width as measured max, as ISO4210 for road bikes (confusingly racing bikes) is 4mm. I would check the drawings before assuming that there is more or less clearance vs. your 268 because that 4mm min clearance spec might be driven by FD cable placement, ST or fork crown clearance. With the 266SL, it does look like FD cable would be the main clearance issue, but since I am actually planning on a 1x build, it wont matter to me. Not sure what the case is with the 126.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Tpower59 on August 12, 2025, 09:56:48 AM
Almost ready to pull the trigger
Isn’t Indiegogo helping you to get a refund if the project isn’t fulfilled ?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 12, 2025, 02:04:32 PM
Almost ready to pull the trigger
Isn’t Indiegogo helping you to get a refund if the project isn’t fulfilled ?

Full refund until 4th Oct after that it’s up to Mondince
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: havox07 on August 12, 2025, 08:23:23 PM
Almost ready to pull the trigger
Isn’t Indiegogo helping you to get a refund if the project isn’t fulfilled ?

Any of these kind of backing programs carries risk. While Indiegogo might offer refunds prior to the closure of the campaign, beyond that its up the the organizers of the campaign, and while they might make every promise in the world now, they aren't actually held to anything and this could change in the future.

I have had some products from Indiegogo that went very well, but these products were pretty much fully ready by the time they created the campaign and it was more for marketing. Others where the product looked pretty close to ready and now here we are 2 years later where they now refuse/don't answer refund requests, are missing all the incredibly late targets they set for themselves and it feels likely the company will just dissolve before the products are actually delivered.

If you aren't ok with risk it would be better to wait for the product to be delivered, reviewed and then you can decided if it is worth it, albeit you will likely pay more.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: raisinberry777 on August 12, 2025, 09:06:07 PM
After following the IQ2 saga on Kickstarter many years ago, I would never 'invest' in a cycling product on a crowdfunding platform.

Not to say that this would be the same, but IQ2 was an example of pretty much everything that can go wrong when you give financial backing to an early stage project.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Tpower59 on August 13, 2025, 01:16:28 AM
Ok thanks I don’t care paying more and be sure to get what I paid for.
So we will wait patiently for this little bomb to be released 😍
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: gribs on August 13, 2025, 01:47:12 AM
i think this is a bit different in that they already know how to build frames, but both want to cover the upfront cost and have a product that will definitely sell.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: maxpet on August 13, 2025, 05:42:55 AM
What’s up with the handlebar, would you need to order it separately from them?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: voidptr on August 13, 2025, 08:35:25 AM
There’s no way this campaign will reach the number of backers they’re asking for in the remaining time.
If you back it, the best-case scenario is getting a refund.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: gribs on August 13, 2025, 10:44:03 AM
430 frames doesn't seem an unrealistic number to sell and why pay now rather than towards the end?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Ludo on August 13, 2025, 11:20:33 AM
There’s no way this campaign will reach the number of backers they’re asking for in the remaining time.
If you back it, the best-case scenario is getting a refund.
They stated that the project will go ahead regardless, so even if campaign does go forward in indiegogo, they may honor the pricing for early backers. That’s me assuming based on what I read here…
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: voidptr on August 14, 2025, 08:08:49 AM
After a bit of research, it turns out they're allowed to keep your money regardless.
They claim that if the goal isn't reached, you'll get a refund, but the campaign is set to Flexible Funding (not Fixed Funding).
That means they'll get your money from Indiegogo whether the goal is met or not.

Any refund would be voluntary, and Indiegogo won't help you get it back.
Once the funding ends, they can spend the money however they want. You have no guarantees and no rights.
It's essentially like paying via PayPal Friends for a 36% discount.

I'm just saying it's definitely risky, and hopefully this won't become the new normal for upcoming framesets from China.
I doubt it's a scam, but there is a risk.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 14, 2025, 10:36:51 AM
I received the following information:

"Refund Policy
You may request a refund from Indiegogo until October 3, 2025 unless the Campaign Owner has initiated shipping with a tracking number.
Any refunds after this date are the responsibility of the campaign owner at their discretion."
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: ThiloK on August 16, 2025, 06:11:29 AM
The frame looks promising, but, as someone who has been scammed on Kickstarter before, I don't quite trust it.

The answers they give are inconsistent. At one point, they say the project will continue no matter what. Then, a little later, they say that they will fully refund you if they don't meet their goals.

They have a flexible goal and claim that the project will continue anyway. If they have the funds to continue anyway, why would they create an Indiegogo campaign and sell the frames for two-thirds of the price, resulting in very little margin?

The weight guarantee seems like bait. They only list one weight for one frame size that hardly anyone orders. How would that guarantee work with my 56 cm frame?

It sounds like they would say and guarantee anything to make sure you back their product. The prices also seem too good to be true.

Once the campaign is over, there is no way to get your money back and Indiegogo won't help you.

Having said that, when I was scammed on Kickstarter, the project didn't look nearly as promising as this one. I guess the chances of this going through are much better than the project I supported.

Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 21, 2025, 05:26:34 AM
Size 54cm 3D Printing Avaliable Next Week
Dear All,
We will do 3D printing for size 54cm. And you will see the what is the real frame look like. And we will check the fitness of the wheels, groupset and over look of the frame.
I will update them to you. And if there is any change, I will let you guys know.
This will be a big move for this project. We will move for mold soon once we check the 3D printing prototype.
Let's wait for this model. If you like this model, please get the perk.
Thanks for your support.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on August 21, 2025, 06:42:11 AM
Soo tempted for this one..
I would really love a 54cm frame.. It would probably be a little bit to low stack for me optimally, but not thaaaat bad.
If weight is anywhere close to what is said, then its extremely light for that deep aero-frame.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Tpower59 on August 26, 2025, 11:57:53 AM
3D printed sample in size 54
Vidéo :  http://www.youtube.com/watch?v=K2C8m_AzaUk (http://www.youtube.com/watch?v=K2C8m_AzaUk)
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on August 26, 2025, 02:20:38 PM
This frame looks really good. Geometry of an all-around frame with aero design. I'm tempted to try but it's too risky for now. The link provided in the thread has also been updated.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Joey on August 26, 2025, 02:33:17 PM
3D printed sample in size 54
Vidéo :  http://www.youtube.com/watch?v=K2C8m_AzaUk (http://www.youtube.com/watch?v=K2C8m_AzaUk)

Thanks for sharing the photos and video! The video especially helps getting a better feel for the frame.

Personally not a huge fan of the curvy top tube. Also the fork clearance seems more narrow than expected. I feel like alot of modern aero frames have pretty big tire clearance.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on August 26, 2025, 02:51:51 PM
Personally not a huge fan of the curvy top tube.

Me neither, it also doesnt seem to appear on any of the renders, I asked him how it will look in the final production
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on August 26, 2025, 02:58:07 PM
I’m in a dialogue with Jack. The final product with look like the renders! Furthermore, I have more trust in them now after I have seen their video, as it appears they have done OEM for a rather known local bike brand in my country
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 26, 2025, 03:01:22 PM
Me neither, it also doesnt seem to appear on any of the renders, I asked him how it will look in the final production

Official statement

Please ignore the twisted top tube. This is caused by painting; The material is not strong enought. It will change its shape when put them into the oven.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: toxin on August 26, 2025, 03:17:36 PM
It looks pretty good, I must say. I'd go fot it over the new VeloBuild as I think they've done a better overall job with the design, but the geometry's just way too slack.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: kubackje on August 26, 2025, 04:48:14 PM
Is it possible to get this in custom paintjob?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 26, 2025, 11:20:38 PM
Is it possible to get this in custom paintjob?

Yes
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Requiem84 on August 27, 2025, 01:58:25 AM
This one is shaping up to be one thé Chinese roadbikes of the year.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: toxin on August 27, 2025, 08:24:20 AM
The 126 is the exact SL8 geometry. Finding the SL8 too slack makes you an outlier among the outliers, especially now that tour riders are increasingly finding they go faster with spacers under their bars.

With the number of pros sitting on the nose of their saddles, they could use more progressive geometries too.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: patliean1 on August 27, 2025, 08:35:57 AM
Bikes are so much fun to build up. Even if I have no reason to build another one.

I'm gonna become that old grumpy man who yells at all the kids in the neighborhood, but also secretly enjoys building and fixing their bikes in my garage. My dad was a welder by trade. And spent weekends tinkering with his Oldsmobile in the garage on weekends.

Sorry this has nothing really to do with the topic. I seen the recent frame photos and thought I wanna build one up just so I can stare at it finished. Carry on...
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: lkip on August 27, 2025, 12:17:43 PM
Comparing the carbon layout of this frame to the carbon layout for the new Berria Naii there's something more than a resemblance:
MONDINCE:
(https://chinertown.com/index.php?action=dlattach;topic=6308.0;attach=34245;image)

BERRIA:
(https://berriabikes.com/cdn/shop/files/berria_naii-composicion-cuadro.jpg?v=1749745360&width=1400)
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on August 28, 2025, 04:35:26 AM
Jack said that they do OEM service for some of the Berria frames.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: patliean1 on August 28, 2025, 09:26:47 AM
Hopefully with the notable exception of brands like Cervelo and what not, that hopefully are more involved in the layup process than random western brands.

This week's Nero Show regarding the latest Cervelo S5 is pure COMEDY
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 28, 2025, 01:42:40 PM
Handlebar geometry chart also released on Indiegogo
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: g0zdzik on August 28, 2025, 03:04:31 PM
Handlebar geometry chart also released on Indiegogo

What it is? Holes for some kind of TT extension as in SPcycle handlebar? Would be perfect.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: klrdd on August 28, 2025, 04:01:55 PM
What it is? Holes for some kind of TT extension as in SPcycle handlebar? Would be perfect.

Presumably for an out-front computer/light/camera mount
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Lotnik on August 29, 2025, 03:13:58 AM
Presumably for an out-front computer/light/camera mount
On to of the handlebar? No way.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 29, 2025, 05:17:45 AM
They are also on the geometry chart. I ask via WhatsApp.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: jo1673 on August 29, 2025, 07:54:46 AM
For once an integrated bar I actually like, on a frame I also kind of like.

But the whole crowd funding model, meh. Curious to see which way they're taking this when they realize they won't reach the "campaign goal" ...
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: toxin on August 29, 2025, 08:22:06 AM
Eh, canyon did it better, should've just copied that
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on August 29, 2025, 09:32:37 AM
Official answer: "Yes, for bar extension. But we may cancel that hole."
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: klrdd on August 29, 2025, 09:40:21 AM
On to of the handlebar? No way.

woops! I saw that wrong  :-X
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: g0zdzik on August 29, 2025, 10:42:15 AM
Official answer: "Yes, for bar extension. But we may cancel that hole."
NO. Please do not do it! :) This is great idea to have dedicated tt extension as a option.

I would also recommend them to come up with something more like only two holes for computer mount. Currently I have such fancy two holes in my carbon handlebar and positioning of a mount istelf is a nightmare. Additionaly, it does not look good.
Deddictaed bottom cutout with maybe a 3d printed computer mount would be perfect :)
But this is only my slippery (bike) dreams ;)
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: contraptions on August 30, 2025, 05:58:17 AM
NO. Please do not do it! :) This is great idea to have dedicated tt extension as a option.
Yeah, there's a huge gap in the market for a solid detachable aero bar.  They're brilliant for long solos.

The bison metron mas is silly money and not very adjustable.

I'm not aware of anyone having actually bought the SP bar on this forum.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: kurtkuehnert on August 30, 2025, 06:32:06 AM
Am I the only one who thinks that the offered stem lengths are quite short (especially in 360 and 380 mm width).
I would like to see at least 120mm for both, and even 130 if possible.

Also I love the flare. 30mm seem perfect for road
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: toxin on August 30, 2025, 08:26:37 AM
It's economics, molds aren't cheap so they saty away from the sizes that are at the ends of the bell curve of demand.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on August 31, 2025, 12:45:14 AM
I emailed Jack from Mondince and they said that they will continue the mould regardless if the Indiegogo did not reach the goal or not. So I am now really tempted to get it but I still need to make sure so I will ask more questions lol. I also asked regarding the handlebar and they said that it costs $80 though I also need to make it clear what handlebar would is that.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: POTOOOOOOOO on August 31, 2025, 05:18:04 AM
Of all the “aero” frames I’ve seen on here recently, this is the most interesting.
Geometry is good ( for me ) and it’s a pretty looking frame.

Is there any CFD data yet? ( sorry if I’ve missed that on the previous pages )
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: WarmYogurt on August 31, 2025, 10:16:54 AM
How many backers does it currently have? It shows 2 for me which seems low and it's giving me some hesitation about joining; not sure if it's a bug on my end?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on August 31, 2025, 12:10:04 PM
How many backers does it currently have? It shows 2 for me which seems low and it's giving me some hesitation about joining; not sure if it's a bug on my end?

They said that they will continue with the mold no matter what, but you can send them an e-mail directly and ask as many questions as you can. I'm also on the verge of buying 1 frame because it really looks promising.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Ludo on August 31, 2025, 12:53:24 PM
Did they say if they would honor the crowdfunding pricing even if it does t go ahead?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: bichler.bua on September 01, 2025, 05:34:42 AM
I am one of the two backers of the campaign
Had contact with Jack, message is consistent and in line with what others are reporting:
"Project will be started after Taichung bike week, Indiegogo to gain more orders and visibility"

In the end it is a risk assessment, there are always risks when you buy directly from China or even when you purchase from a western OEM locally
Probably more risks with Indiegogo involved, but that is up to everyone to asses
Pricing will very likely increase for later direct orders, therefore I took the risk as the frame ticks most of my needs
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: jo1673 on September 01, 2025, 06:35:16 AM
Maybe it's just me being slow and not quite getting it ... but anyways - if the campaign on indiegogo doesn't reach the required number of backers (and we must assume it doesn't?), do you expect to be able to buy this frame at the reduced price at some point in time? I mean, if this turns out the way it looks, I'm fine paying $1000+, but who doesn't love a bargain?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Requiem84 on September 01, 2025, 07:00:14 AM
The message is that you can now buy at a discount, and later at full retail price.

Someone else surely has the numbers, but you’re now paying something like 60% of the retailprice.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: jo1673 on September 01, 2025, 07:22:29 AM
Sure, but it was mentioned a few posts longer up that there isn't any incentive to buy before the deadline. This is the part that confuses me. @Serge_K said he may buy four frames.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: toxin on September 01, 2025, 07:32:51 AM
The incentive is that it's cheaper if you buy now
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: jo1673 on September 01, 2025, 07:47:18 AM
OK, so no incentive to buy this far from the deadline then, gotcha  :)
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on September 01, 2025, 10:06:36 PM
For integrated bar, they said that there is a version with no holes on top. TBH I am ready to take the risk, communications with Jack is so consistent and he replies to every questions I throw at him. I'll ask if they plan to add an option where the integrated bar is included so we will not order the handlebar separately thru paypal.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on September 02, 2025, 12:36:50 AM
But unfortunately they use no standard for the integration (eg FSA ACR). So I will look for a handlebar somewhere else.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: jo1673 on September 02, 2025, 07:23:59 AM
But unfortunately they use no standard for the integration (eg FSA ACR). So I will look for a handlebar somewhere else.
Why is this a problem? Sorry for the potentially stupid question, my bikes are externally routed and I'm not too well educated in internal routing.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on September 02, 2025, 08:52:16 AM
As they use a round headtube no "real" problem but I like the way of the FSA ACR integration more than proprietary options.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on September 02, 2025, 11:22:53 AM
But unfortunately they use no standard for the integration (eg FSA ACR). So I will look for a handlebar somewhere else.

What handlebar are you eyeing? I want to try those handlebars with risers like HBR017 from Lightcarbon. Seems like everyone in pro peloton is raising their stacks now lol
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on September 02, 2025, 01:42:15 PM
I think I will get in contact with Peter for the just released XMC handlebar with FSA system
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rebel_Yell on September 02, 2025, 04:08:25 PM
I think I will get in contact with Peter for the just released XMC handlebar with FSA system

Mine is ready. Waiting on frame painting to finish they they both ship. Trying to attach pic.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Bobinski on September 04, 2025, 02:12:56 AM
I think I will get in contact with Peter for the just released XMC handlebar with FSA system

If you are UK based I have the 38x100 from Peter for sale- unfortunately it won’t fit my Vielo.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Wil on September 04, 2025, 02:14:16 AM
Wow that's such good news !
Thank you Serge for convincing them, I am definitely going to pull the trigger in size 61 !
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: jfcb on September 04, 2025, 02:36:01 AM
Wow that's such good news !
Thank you Serge for convincing them, I am definitely going to pull the trigger in size 61 !

Everything about this frames looks interesting, but the head tube angle of 74 degrees in that size scares me off. I know it's a copy paste of SL8, but that doesn't mean it's good. Do you have any experience with similar frames?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Wil on September 04, 2025, 02:58:51 AM

Everything about this frames looks interesting, but the head tube angle of 74 degrees in that size scares me off. I know it's a copy paste of SL8, but that doesn't mean it's good. Do you have any experience with similar frames?

Not at all, I currently ride with an old Look frame from the 2000s. But I'm 2 metres tall, so I don't think that will be a problem? I'm also thinking of buying the handlebars, but I have no idea what size to choose yet.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rebel_Yell on September 04, 2025, 05:10:58 AM
If you are UK based I have the 38x100 from Peter for sale- unfortunately it won’t fit my Vielo.

Not UK based and have paid already for bars. Thx
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on September 04, 2025, 06:27:47 AM
If you are UK based I have the 38x100 from Peter for sale- unfortunately it won’t fit my Vielo.

Not UK based, thx
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on September 04, 2025, 01:59:11 PM
I would like it even better if it was only a little more stack on the smaller sizes. Like 10mm or so - that would be perfect. 😅😅
Serge, maybe you can ask that too? 🫣😅😅
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: cyruscycles on September 05, 2025, 12:28:42 AM
So tempting. I absolutely don’t need it though. This girl I’m talking to is nearly my height. If I make her my girlfriend, maybe I can make her a cyclist, gift her my 105 Hygge, and build this up with Ultegra 🤔
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Ludo on September 05, 2025, 03:36:51 AM
Sounds like a plan and the new bike is going to be the cheapest part of that whole girlfriend project!
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: meysow on September 05, 2025, 03:38:02 AM
So tempting. I absolutely don’t need it though. This girl I’m talking to is nearly my height. If I make her my girlfriend, maybe I can make her a cyclist, gift her my 105 Hygge, and build this up with Ultegra 🤔

That sounds like a solid plan, I would 100% go for it !
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Emcc on September 05, 2025, 09:31:58 AM

Who doesnt like trigonometry on a Friday?


For such Trigonometry things i prefer bike-stats instead of geometrygeeks. (https://bike-stats.de/en/geometrie_vergleich?Bike1=Long%20Teng_268-D_2024_540&Bike2=Specialized_S-Works%20Tarmac%20SL8_2024_54&Bike3=Specialized_S-Works%20Tarmac%20SL8_2024_56)

There you can see a rough geometric picture. So you can spot possible toe overlap and such.
Maybe it helps your trigonometry-fetish. (your bike in red)

Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on September 05, 2025, 10:17:33 PM
No can do unfortunately :)
I tried :D
And I agree. The somewhat low stack is the one reservation i have about it, but i also know i can work around it.

The 35C though is confirmed, and it's a huge positive.

Edit: bike fit shenanigans, in case it's useful for others.
The one thing i wish were different on this FM126 is the stack: wish it were higher.
Who doesnt like trigonometry on a Friday?
I'm on a LTK268 M, so vs the FM126 in M, the 126 is 2mm longer and 8mm lower, which i dont love. I went from 80 stem to 100 on the 268. From 126 M to L, stack is up 21mm, reach is up 11mm, and seat angle is 0.5 degree slacker, which at my saddle height is 7mm further back, which i dont love either (I ride on the flat mostly so i slam my saddle fwd by default.
So, if i go from 126M to 126 L, you're up 21mm in stack, and 18mm in reach (11 + 7 from the saddle). If i drop back to 80mm stem, then i'm back to square 1, but i gained 21mm in stack. Which then allows me with a full spacer stack to be significantly higher (my saddle to bar drop is pretty epic). 268 M to 126 L is 20mm longer (13+7) and 13mm taller. So i can drop back down to 80mm stem and get an L. Also, they will be making a zero offset seat post, so i'll get one of these on top of the regular one. I'm going to have so much seat post exposed compliance wont be a problem, especially on 32C measuring 34-35mm. If i do that, i will be able to play with the "higher stack is faster when in tuck" vibe.

If you understand anything, bravo, because i dont.
I THINK that M to L in the 126 is basically reach neutral, you gain 21mm stack, and your hip angle should open up. Even more so with a 0 offset seat post. So I guess i'm leaning towards an L. For reference, i'm 184 and my saddle height is 80-81cm. I also plan to switch to 165mm cranks, which should open up my hip angle even more. Might be worse off in the mountains, but so much of my riding is on the flat, i'm solving for that.

Adding a 10mm spacer on the M should be close enough for you to make no changes. I think you are already doing this, but it's important to remember that adding spacers adds stack AND reduces reach. Because of this, the L is ~17mm longer than the M (if I am reading the sizes right) at the same stack height.

Your bike fit is super old school, so IMO the question for the L is more about whether or not you wanted to try a more modern position which would require more or less a total refit, as you likely need to change your saddle position for that size to work. However, I think that it would be worth it for you. Ideally, you could find someone with a bike that size to try riding with or get on a fitting rig and see how it feels, both JRA and when doing a hard effort.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: mtm on September 06, 2025, 03:55:39 AM
Anyone knows the reason for 160/180 rotors instead of the more standard 140/160? Who's using 180, especially on the back? Even 140 on the back seems more than enough for a road bike.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: raisinberry777 on September 06, 2025, 04:36:57 AM
Probably so adapters are not needed and you get a cleaner look with the calipers bolting straight on for a typical 160/160 setup.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on September 06, 2025, 05:03:00 AM
But you need an adapter for the front anyway. I don’t expect there is possibility to bolt the calipers from the front through the fork like on the just released Cervelo R5.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: mtm on September 06, 2025, 06:48:19 AM
As mentioned above, I believe you need adapter on the front anyway. So it would be to not use adapter on the rear if using 160 rotor, but aren't most using 140 on the rear? At least all bikes in my household are 140 rear and the standard in road racing is 140 rear as well. Is any modern road bike from a big brand using 160/180 on the rear instead of 140/160?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: jfcb on September 06, 2025, 10:45:02 AM
Anyone knows the reason for 160/180 rotors instead of the more standard 140/160? Who's using 180, especially on the back? Even 140 on the back seems more than enough for a road bike.

I think/hope that's a typo from their side. On the Indiegogo page, it's mentioned 140/160mm in the rear. 180mm doesn't make much sense, unless they are going to increase the tire clearance to 55mm and add rear suspension.
(https://c1.iggcdn.com/indiegogo-media-prod-cld/image/upload/c_fit,g_center,q_auto,f_auto,w_695/m0o9xv6eo0ol1ebkjkpa.jpg)
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: mtm on September 06, 2025, 01:44:36 PM
That makes more sense, good spot! I guess they might go with 160/180 front and just mistakenly copy-pasted to the rear (would personally still prefer 140/160 front, but at least it makes a bit more sense with 180 on the front).
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: robinoco on September 06, 2025, 03:11:01 PM
3 backers now 👀
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: robinoco on September 07, 2025, 04:46:24 AM

Who doesnt like trigonometry on a Friday?
Or a Sunday - I put the dims in bike-insights to play with.
https://bikeinsights.com/bikes/68bd50d23a7c56001b389e0b-mondince-fm126?build=base&version=2026
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on September 10, 2025, 12:11:40 AM
I think/hope that's a typo from their side. On the Indiegogo page, it's mentioned 140/160mm in the rear. 180mm doesn't make much sense, unless they are going to increase the tire clearance to 55mm and add rear suspension.
(https://c1.iggcdn.com/indiegogo-media-prod-cld/image/upload/c_fit,g_center,q_auto,f_auto,w_695/m0o9xv6eo0ol1ebkjkpa.jpg)

I can confirm that rotors will be 140/160

Furthermore, they will make a seatpost adapter for a DI2 battery so installation should be simple
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on September 10, 2025, 07:52:00 AM
Furthermore, they will make a seatpost adapter for a DI2 battery so installation should be simple

I dont think there will be any need for internal DI2 batteries on newer groupsets anyway - Since shimano have moved away from internal on MTB/Gravel, it will probably be the same for the upcoming road groupsets.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: thenewbeethoven on September 10, 2025, 07:52:32 AM
Right, that is quite tempting.

It looks like a pretty good deal from a decent chinese dealer.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on September 10, 2025, 08:41:00 AM
I dont think there will be any need for internal DI2 batteries on newer groupsets anyway - Since shimano have moved away from internal on MTB/Gravel, it will probably be the same for the upcoming road groupsets.

True, but if you run the current groupset (which are quite fairly priced at the moment) an adapter is nice.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on September 10, 2025, 09:36:46 AM
Cockpit is ready, Aero mounts are dropped
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on September 10, 2025, 09:41:13 AM
And the mentioned Di2 battery mount
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on September 10, 2025, 11:24:22 AM
I dont think there will be any need for internal DI2 batteries on newer groupsets anyway - Since shimano have moved away from internal on MTB/Gravel, it will probably be the same for the upcoming road groupsets.

I won't replace my current Di2 anytime soon so this will be useful for me
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on September 12, 2025, 02:14:34 PM
Aero mounts are dropped
  :'(
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Freddy__HH on September 13, 2025, 01:07:54 PM
This frame looks very tempting. However I read that the hardware will be gold color. Anyone knows if black would also be possible?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on September 13, 2025, 01:22:13 PM
Yes, see the page before
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: robinoco on September 13, 2025, 02:55:36 PM
This frame looks very tempting. However I read that the hardware will be gold color. Anyone knows if black would also be possible?

Surely the gold hardware is the clincher 👌
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: kungie on September 16, 2025, 03:07:59 PM
Who is the target audience for this bike? I am a firm believer in Chinese goods (within reason), but don't have a Chinese frame yet. I have an aging road bike (aluminum frame, rim brakes, endurance geometry I've outgrown) that I want to upgrade. Given I already have solid carbon gravel and HT mtbs, I'm interested in doing something unique like this for the road bike. I don't race, but I like to go fast, and intend to do a lot of randonneuring, and bikepack and mtb race next year.

I get buying a frame that hasn't been reviewed, or even released, comes with risk, but after researching Long Teng and reading through this thread, I'm feeling really excited about this project and interested in buying the frameset (and handlebars, bummer on the no aero attachments though) using some bonus money from work.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: meysow on September 17, 2025, 05:14:54 AM
Cyclists :)

Thanks, but he is obviously looking for a more detail answer.
Target is cyclists who likes big fat as*.. wait no, I mean big fat aero tubes, cause look is everything !
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: strayan_rice_farmer on September 17, 2025, 07:35:10 AM
Speaking as a target audience for this bike, its raison d'être is undoubtedly the deep aero front fork.

When it comes to aerodynamics, the front end of the bike is where about 90% of the drag is created. The air that reaches the rear stays and wheel is already a turbulent mess, so nailing the front-end design is critical. So to satisfy my inner Aero #StanceNash, these forks are money (rest of the bike looks good too).

The other key factor is reducing my frontal profile. Less bike specific and more setup planning, I plan to run this frame with a size down + setback seatpost and Onirii Y1RS-style handlebars to achieve a high stack, pseudo-time trial position. Think along the lines of Arne Peters from Morpheus Bikes on Instagram.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: kubackje on September 17, 2025, 05:49:51 PM
Speaking as a target audience for this bike, its raison d'être is undoubtedly the deep aero front fork.

When it comes to aerodynamics, the front end of the bike is where about 90% of the drag is created. The air that reaches the rear stays and wheel is already a turbulent mess, so nailing the front-end design is critical. So to satisfy my inner Aero #StanceNash, these forks are money (rest of the bike looks good too).

The other key factor is reducing my frontal profile. Less bike specific and more setup planning, I plan to run this frame with a size down + setback seatpost and Onirii Y1RS-style handlebars to achieve a high stack, pseudo-time trial position. Think along the lines of Arne Peters from Morpheus Bikes on Instagram.

I also think about this frame but with this handlebars. The one you posted have too much rise sadly

https://a.aliexpress.com/_EQZTCd8
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on September 18, 2025, 08:12:30 AM
Quite a sad day guys, I think they will not continue the Indiegogo and TBW(Taichung Bike Week). They said that they will still continue to build the model in the near future. Sad for the backers and future backers which includes me. Well back to the drawing board for me again, so LCR017D or SCR-55D? Or any other suggestions?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Gloopann on September 18, 2025, 08:27:53 AM
Quite a sad day guys, I think they will not continue the Indiegogo and TBW(which I assume it's China's fundraising site similar to Indiegogo). They said that they will still continue to build the model in the near future. Sad for the backers and future backers which includes me. Well back to the drawing board for me again, so LCR017D or SCR-55D? Or any other suggestions?

Hold on, where did they say that? I wanted to back it at the end of the month :(
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on September 18, 2025, 10:31:02 AM
Hold on, where did they say that? I wanted to back it at the end of the month :(

I sent them an e-mail asking about warranty and Jack said that "Please wait sometime. We did not get enough order in the TBW. So we may not open the mold. And we will refund all the money to the customers. But we still market this model."
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: ArrowDE on September 18, 2025, 11:07:56 AM
Hold on, where did they say that? I wanted to back it at the end of the month :(

same here :'(
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: ThiloK on September 18, 2025, 11:26:48 AM
Would be interesting to know how many backers they need. We are at 4 right now. I thought about ordering one as well
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on September 18, 2025, 11:38:15 AM
I really plan to order by the end of the month as well after my vacation. I moved my fitting session for this lol.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Motus on September 18, 2025, 11:52:05 AM
I sent them an e-mail asking about warranty and Jack said that "Please wait sometime. We did not get enough order in the TBW. So we may not open the mold. And we will refund all the money to the customers. But we still market this model."


I don't really understand this thing... I mean, if they want to carry on with this model anyway, why refund the customers?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: ThiloK on September 18, 2025, 11:56:12 AM

I don't really understand this thing... I mean, if they want to carry on with this model anyway, why refund the customers?

I guess they want to take more time and not be restricted by the indiegogo timeline. On the contrary, I haven't heard of many indiegogo projects that stick to the estimated delivery date.

Are you planning on backing the project anyways to show some support and hope they change their mind?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on September 18, 2025, 12:21:46 PM
So based on the last information I took a step back and just got refunded bei Indiegogo.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: robinoco on September 18, 2025, 01:22:10 PM
I asked a few questions a couple of weeks back & was told that "indiegogo was just a place to get more orders & that the production would go ahead regardless" and that production would "start in October"
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: cyruscycles on September 18, 2025, 01:49:44 PM
I sent them an e-mail asking about warranty and Jack said that "Please wait sometime. We did not get enough order in the TBW. So we may not open the mold. And we will refund all the money to the customers. But we still market this model."

Such a bummer. I was just putting off backing until the end of the campaign because there were plenty of slots and I've been spending a lot this month already
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: kubackje on September 18, 2025, 02:10:41 PM
What a bummer I wanted to buy it in 2 weeks when I got fresh money
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: ThiloK on September 18, 2025, 02:34:51 PM
I guess we ne @Serge_K to talk to them and convince them to do it anyways
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: toxin on September 18, 2025, 02:37:35 PM
kinda funny how people are surprised that a campaign that was raising basically nothing got shut down. I'd guess they'll offer the design and exclusive region rights to brands now.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: ThiloK on September 18, 2025, 06:06:24 PM
kinda funny how people are surprised that a campaign that was raising basically nothing got shut down. I'd guess they'll offer the design and exclusive region rights to brands now.

They said several times, that they will build the frame no matter what. Also by having no early bird discount, there was zero incentive to back the campaign any earlier than their deadline in 2 weeks
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: jo1673 on September 19, 2025, 07:16:19 AM
Also bummed out about this news, was seriously thinking of backing this
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on September 20, 2025, 09:05:43 AM
They need roughly 100 orders before they open the mold. Unfortunately they Will Cancel and refund
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Keiner on September 20, 2025, 12:23:41 PM
Planned on ordering 1 XL Frame. 100% sure, unless they would do any weird changes to the frame.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on September 20, 2025, 12:48:10 PM
Id buy size 58
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: kubackje on September 20, 2025, 01:17:27 PM
I am 100% sure I want one. Started to choose a paintjob already lol
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: robinoco on September 20, 2025, 01:19:57 PM
110%
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: tgarne on September 20, 2025, 01:40:06 PM
100% size 61
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Oro on September 20, 2025, 01:52:27 PM
I was also 100% planning to get a size 61.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: ArrowDE on September 20, 2025, 02:07:11 PM
90% planned on 1x 54
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: ThiloK on September 20, 2025, 05:16:42 PM
100% sure
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: strayan_rice_farmer on September 20, 2025, 06:43:03 PM
100% Frame + Bars + both seat posts
54cm
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Tvobias on September 20, 2025, 07:16:35 PM
I was 100% sure I was getting one as well
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on September 20, 2025, 08:25:40 PM
I was 100% getting the frame. I moved my fitting session for this lol. Now I am in talks with Justin from Speeder to get SCR55D but let us know @Serge_K how your talks with Jack will end up. He also ended up not replying to my e-mails for a while now.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: robinoco on September 21, 2025, 12:15:26 AM
I sent Jack an e-mail about this when I saw the message about it not happening - he has yet to respond (despite being very responsive initially when I showed interest).

I have just received this message via Whattsapp :

Please ask refund at Indiegogo page. We did not have enough money to open the mold.

We did not get any big order at Taichung bike show. The market is too bad. So sorry for that.

If you still like this model, I can send you information when this model is finished.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: kurtkuehnert on September 21, 2025, 12:29:15 AM
I am sure to get two frames in size 56.
But if they cancel the early bird indigogo price I might reconsider.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on September 21, 2025, 12:32:44 AM
Urgent News
Dear All,
So sorry to tell you that we may not open this model this year. We did not get any big order from Taichung bike show. And the buyers are so small at the Indiegogo.
Anyway, this model is really good. We will release this next year and do the crowfunding later in Indiegogo. So sorry for this.
Please ask for refund if you have buy this perk. And stop do the crowfunding.
Thanks for all your supports.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Requiem84 on September 21, 2025, 12:41:17 AM
Shame many people wanted to buy, but decided to wait until the last minute. Let that be a lesson to us all for next indiegogo’s…

Personally I’m interested in the frame once it’s available via the normal channels next hear. Still hope they’ll make it.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on September 21, 2025, 01:27:22 AM
Shame many people wanted to buy, but decided to wait until the last minute. Let that be a lesson to us all for next indiegogo’s…

Personally I’m interested in the frame once it’s available via the normal channels next hear. Still hope they’ll make it.

They might be also dependent on how many people/brands will buy this frame on TBW. So even if we have the numbers, if there is no customers in TBW then it would just be postponed. Jack replied to me and said that they will release this frame next year.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Wil on September 21, 2025, 02:45:43 AM
100% sure too for size 61

Had this response from Jack today : "We will not open this model this year. We will do it next year. I will keep you updated. Sorry for this. "
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: kungie on September 21, 2025, 11:02:41 AM
What a bummer. I was 95% for a 58. Already have the money aside, but one of the main drawing factors was the early discount. Starting to look at alternate options for a fast road bike with 32 or 35mm clearance.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: jovivamo on September 22, 2025, 03:53:28 AM

It's a shame my intention was to buy one just when I read that it was not going to be made.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on September 22, 2025, 07:24:56 AM
I've been chatting with Jack and at the moment they expect for it to be ready in June. They are considering making the molds bicoque or not monocoque to decrease the cost.
If they continue with monocoque one piece holding the price might be 500 usd for normal weight and 650 for ultralight and then 150 usd for shipping (roughly)

This is basically the same price as it would be on indiegogo.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: strayan_rice_farmer on September 22, 2025, 07:47:41 AM
I've been chatting with Jack and at the moment they expect for it to be ready in June. They are considering making the molds bicoque or not monocoque to decrease the cost.
If they continue with monocoque one piece holding the price might be 500 usd for normal weight and 650 for ultralight and then 150 usd for shipping (roughly)

This is basically the same price as it would be on indiegogo.

Hell that would be a steal for Ultralight pricing.
I'd happily pay more than that for a monocoque High fibre frame.
(Don't tell them that tho) 😂🤫
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on September 22, 2025, 12:12:41 PM
The term bicoque was that used by Mondinice? I know things can get lost in translation, but it’s a common error on this forum to think that monocoque means single piece, rather than a structural term on which indicates that the skin is the single structural element vs. unibody where skin and frame are elements are unified but still distinguishable. Its a red flag IMO for someone in the industry, close to the process of molding to make this mistake.
 
The bike industry has tons of problems—but the most critical one is that there are too many unique SKUs out there and not enough common parts. This just kills economics. Meanwhile, particularly the auto industry gets criticism from the opposite direction. Not enough uniqueness.

Regarding the current environment. I get the sense it’s really bad in China for the bike industry and it seems like its going to get worse before it gets better. That said, some of this is reap what you sow. The western bike companies have been locked into this notion of better design, but thats slowly eroded to the point where it feels like only the very top end frames have something unique going on. On the other side, the chinese brands that used to compete on price are finding that standing up their own brands is expensive.

It’s way too much to expect an Indigogo project to fix the issues with the industry, but this bike was never likely to actually be aero or bend the cost curve in a meaningful way. Unfortunately rather than these bikes “beating” western counterparts, we are more likely to see options like these become rare as brands like Evolve, Pearmeants, and QuickPro become the direct sales outlets for these factories.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: meysow on September 22, 2025, 12:25:07 PM
Selling bikes at those insane price mostly because they can. They wouldn't show these crazy prices if there was no bike bro buying it to look cool at the Cafe. As we can observe, people buying bikes are ok paying a (huge) premium for the brand.

The thing is, you can't brag at the Sunday rides with a Chinese frame (hence why even on this forum, peeps will put decals of western brands on fake frame).

Don't get me wrong, I'm not justifying this comportment, as I make my objective to have the best quality/price ratio, and would be much more proud of an unbranded Chinese bike that would have the same features as a 10k$ one.

That's the whole interest of this forum as together we are getting to know the market better, and by trial and errors we are identifying the trusted OEM, and maybe in several years, just like the wheels, OEM frames will be recognized more an more, as a real alternative to the western brands, making them lower their price or loose customers ?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on September 22, 2025, 01:45:12 PM
The term bicoque was that used by Mondinice? I know things can get lost in translation, but it’s a common error on this forum to think that monocoque means single piece, rather than a structural term on which indicates that the skin is the single structural element vs. unibody where skin and frame are elements are unified but still distinguishable. Its a red flag IMO for someone in the industry, close to the process of molding to make this mistake.
 
The bike industry has tons of problems—but the most critical one is that there are too many unique SKUs out there and not enough common parts. This just kills economics. Meanwhile, particularly the auto industry gets criticism from the opposite direction. Not enough uniqueness.

Regarding the current environment. I get the sense it’s really bad in China for the bike industry and it seems like its going to get worse before it gets better. That said, some of this is reap what you sow. The western bike companies have been locked into this notion of better design, but thats slowly eroded to the point where it feels like only the very top end frames have something unique going on. On the other side, the chinese brands that used to compete on price are finding that standing up their own brands is expensive.

It’s way too much to expect an Indigogo project to fix the issues with the industry, but this bike was never likely to actually be aero or bend the cost curve in a meaningful way. Unfortunately rather than these bikes “beating” western counterparts, we are more likely to see options like these become rare as brands like Evolve, Pearmeants, and QuickPro become the direct sales outlets for these factories.

Bicoque is not used by Jack from Mondince, but rather by me. Jack said that they may glue the parts together instead of monocoque "not all in one monocoque tech". Apologies for the misunderstanding.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on September 22, 2025, 01:53:05 PM
Selling bikes at those insane price mostly because they can. They wouldn't show these crazy prices if there was no bike bro buying it to look cool at the Cafe. As we can observe, people buying bikes are ok paying a (huge) premium for the brand.

No offense intended, but this is an ill-informed and extremely entitled view on this forum. Try building a brand to sell these frames and see where your costs end up. They will be more than Tideace or Pemeants for these Long Teng frames. By the time you give margins to the factories, to bike shops etc, brands like Specialized aren't making that much and their spending on racing isnt the lavish expense people think.

Take a $600 frame assume that you can negotiate a volume discount selling 33 frames a month of 25%. Your break even for even a web based d2c type operation is probably well over $1000/frameset not including paying yourself or shops space. That doesnt include metal parts like Mondinice was doing here. Now think about the volume of frames they needed to cover the cost of the mold that they were looking to raise via Indigogo at their stated prices. What was that 400 frames? So, if you want to pay yourself, have liability insurance, shop space, etc, based in a western country you probably cant sell these frames for less than $1,500 before shipping, and the cost of things like thru axles, branded paint, etc. This assumes a lean one person shop. Throw in some money for a second employee, so social media ads, going to trade shows etc, and the prices these Chinese brands are charging starts to seem pretty darn fair just for the brand and factory to pay off a mold in a year. This is a long way from getting rich and charging prices detached from their operating expenses.

Then add 35-50% margin to be split between a distributor and your LBS and you get Specialized prices. After all they need to get paid for buying the product and the cost of capital required to hold the inventory.

We should be grateful that this site exists and we can order direct at the prices we pay. That LTK are even making one of their premium products available for direct purchase at their prices is also rare. What Peter and Justin of XMCS and Speeder, respectively sell their stuff to us for is also a fantastic deal, and we are lucky that they do it unlike the companies that have gone fully B2B.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on September 22, 2025, 02:24:32 PM
Sakizashi.
When you mention Long Tengs premium products are you referring to LTK 266 SL?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: meysow on September 22, 2025, 03:53:36 PM
I can't argue they have costs.

No offense either, but I would love your analysis on why factor sells ostro at 6500$ while you can buy a replica that seems close to the real thing at 750$. We are talking a 1/10th of the price there.

 
Though we essentially say the same thing, let's celebrate this forum giving us access to bike part priced according to the fundamentals they rely on (quality, materials used, etc...), not some marketing or some HR salary or whatever you feel like
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on September 22, 2025, 04:07:46 PM
I can't argue they have costs.

No offense either, but I would love your analysis on why factor sells ostro at 6500$ while you can buy a replica that seems close to the real thing at 750$. We are talking a 1/10th of the price there.

 
Though we essentially say the same thing, let's celebrate this forum giving us access to bike part priced according to the fundamentals they rely on (quality, materials used, etc...), not some marketing or some HR salary or whatever you feel like

I hope $750 is the shipped cost because that is still more expensive than most open mold frames. As for why it’s less than Factor. They probably only pay $200-$300 to their factory for the knockoff because they are probably made with cheaper materials. The weights of the frame support this. The major associated cost is probably only the physical mold and painting.

Meanwhile Factor is putting like $400 of MATERIALS into the frames. I did a calculation a while back based on numbers from an interview with Factor’s founder and figured that their frames if truely sold D2C like Seka would be closer to $3500-4000 for the bare frameset which is still pretty expensive, but the factory then run really is one of the highest end in China AFAIK.

Sakizashi.
When you mention Long Tengs premium products are you referring to LTK 266 SL?

Yes. I think it qualifies. It’s probably a generation old compared to the latest and greatest like the Scott Addict RC Ultimate or the new Cervelo R5, but it’s a heck of a bike. Build it up with an FSA No 55 headset and Deda Superbox stem in the 140–160mm length paired with a bikedoc bar. Wear a good skinsuit, aero road helmet, etc.; and if you can hold that position, I would bet an average height person on a size 54 could get to sub 0.26 CDA. Compare that against a Fauxtro with a more traditional setup costing you more, being heavier, and leaving you with a 0.32 or smth CDA.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: toxin on September 22, 2025, 04:32:07 PM
Also it's a lot cheaper to make a replica when all of your design work is a 3d scan and you don't really care if your product puts someone in the hospital
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: meysow on September 22, 2025, 04:59:43 PM
Yeah I think some people in the ostro Vam thread payed around 750$, or a bit more, shipped (not 100% sure). Still expensive but the inside of the frame is probably cleaner than a few OEM. (Cf oralmaster's pics)

Also, to go along with Serge's analogy, I still don't get why a bike would cost the same price as a motorbike. Those companies supports the same costs you mentioned (if not more considering a 200kg+ motorbike require a lot more materials, engineering, safety concerns, even electronics and so on). There is a price gouging, just look at the difference of price from the 105di2 at launch and now, it's drastically lower and they still prolly make margin on it (both Shimano and reseller)

Also it's a lot cheaper to make a replica when all of your design work is a 3d scan and you don't really care if your product puts someone in the hospital

True,  the peace of mind is priced, or let's put it the other way around, you get cheaper frame gambling with your life, that's why I'm more inclined buying from a reputable OEM than a company producing fakes. (Even though there are some accidents with big brands too, but that's another topic)

This why it's sad that this project didn't come (yet?) to life. Not having the budget to support the campaign or buy a frame now, but when I do I would have considered this frame
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: cyruscycles on September 22, 2025, 05:58:15 PM
Yeah I think some people in the ostro Vam thread payed around 750$, or a bit more, shipped (not 100% sure). Still expensive but the inside of the frame is probably cleaner than a few OEM. (Cf oralmaster's pics)

Also, to go along with Serge's analogy, I still don't get why a bike would cost the same price as a motorbike. Those companies supports the same costs you mentioned (if not more considering a 200kg+ motorbike require a lot more materials, engineering, safety concerns, even electronics and so on). There is a price gouging, just look at the difference of price from the 105di2 at launch and now, it's drastically lower and they still prolly make margin on it (both Shimano and reseller)

True,  the peace of mind is priced, or let's put it the other way around, you get cheaper frame gambling with your life, that's why I'm more inclined buying from a reputable OEM than a company producing fakes. (Even though there are some accidents with big brands too, but that's another topic)

This why it's sad that this project didn't come (yet?) to life. Not having the budget to support the campaign or buy a frame now, but when I do I would have considered this frame

In my opinion it's not so much price gouging as it is luxary products larping as fitness tools. Bicycles are commodities with very little tangible differentiation between competitors. Like the watch industry after the quartz revolution, the big bike brands pivoted into selling high end luxary branding and craftsmanship. For the people that buy a $6000 frameset, the price is a feature. The purpose of an Sworks is to flex on other 40 year olds on the group ride. The racing competitors that the bikes market themselves as for get gifted their bikes, so they're not really the target customer at the end of the day
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on September 23, 2025, 09:34:34 AM
The economics of a true luxury good are wild. LVMH might as well be on a different planet than Specialized.

IDK, I know we are upset that this project didnt become real (me included, though I was a watcher not a potential buyer) but lets not throw every company under the bus and they arent equal to all levels of the market.

SRAM is doing a pretty good job using common parts and driving tech down into the lower ranges and scaling it. I think most people after riding them, back to back would rather have a Rival AXS E1 bike vs. a Red D1. Which is nuts to think about there being a half generation only of difference between them. It’s very much offense as defense vs. Wheeltop (and maybe Ltwoo), but I think its working and has made market traction really difficult for those other groupset brands.

Making good, complete, products is hard and a company like Specialized puts out a good, complete customer ready product. Yes there is a cost associated with that including a large # of engineers, product teams, HR and marketing. That’s just different than what Chinese brands (e.g,. Evolve) are putting out right now: mostly frame sets and wheels. Thats also different than what the factory direct offerings are. Of course not every western brand is Specialized or Trek and not every Chinese brand is putting out a good product like Evolve apparently is. Some are disappearing because thats what happens to companies that don't serve their customers with a good product at a good price.

For example, I think that LTK did a really good job on the 266 D SL. It’s a fantastic deal for the buyer who is comfortable building their bikes, well versed in reading spec sheets, etc. But they still seem to have dropped the ball on providing a good headset and spacer solution for the customers also buying handlebars. They are only competitive with the Chinese brands for people with access to knowledge to make the frame work for them in terms of parts and compatibility. In turn those Chinese brands are also only competitive with Specialized for people who know how to spec groupsets and wheels AND install them to make a complete bike.

I’d like to think that at its best, this forum helps people cross those gaps and help people turn their factory direct frames into complete bikes that work well.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Requiem84 on September 23, 2025, 10:16:20 AM
I hope $750 is the shipped cost because that is still more expensive than most open mold frames. As for why it’s less than Factor. They probably only pay $200-$300 to their factory for the knockoff because they are probably made with cheaper materials. The weights of the frame support this. The major associated cost is probably only the physical mold and painting.

Meanwhile Factor is putting like $400 of MATERIALS into the frames. I did a calculation a while back based on numbers from an interview with Factor’s founder and figured that their frames if truely sold D2C like Seka would be closer to $3500-4000 for the bare frameset which is still pretty expensive, but the factory then run really is one of the highest end in China AFAIK.

Yes. I think it qualifies. It’s probably a generation old compared to the latest and greatest like the Scott Addict RC Ultimate or the new Cervelo R5, but it’s a heck of a bike. Build it up with an FSA No 55 headset and Deda Superbox stem in the 140–160mm length paired with a bikedoc bar. Wear a good skinsuit, aero road helmet, etc.; and if you can hold that position, I would bet an average height person on a size 54 could get to sub 0.26 CDA. Compare that against a Fauxtro with a more traditional setup costing you more, being heavier, and leaving you with a 0.32 or smth CDA.

You can’t recalculate ‘actual’ costs like you did.

We’d need to have full visibility on the R&D costs, capital expenses, depreciation, transfer price mark-up etc etc.

And then there is marketing, warehousing, insurance, shipping, warranty etc etc.

It’s impossible to know.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on September 23, 2025, 10:27:28 AM
You can’t recalculate ‘actual’ costs like you did.

We’d need to have full visibility on the R&D costs, capital expenses, depreciation, transfer price mark-up etc etc.

And then there is marketing, warehousing, insurance, shipping, warranty etc etc.

It’s impossible to know.

I mean it’s ranged because you need assumptions. I’ve done CDD / pre-ipo diligence for my day job as well as written investment cases. I don't think it’s a crazy number. Granted those assumptions are general manufactured goods / industrial goods and not for the bike industry. Obviously its a back of the envelope type calculation so you can take it or leave it.

The basic thesis I am proposing is that complexity not fat cat margins is driving prices. The fake and replicas aren’t a good comp given how much they seem to skip and the overall lower quality. I have not really thought about it much, but it wouldn’t surprise me if on a % basis fakes / replicas make more net AND gross margin than the originals. Not to mention the factory direct open molds which are likely lower gross, but higher net margin than the branded products. It would explain why TanTan and Airwolf shifted towards fakes and away from the few original designs in their portfolio.

The corollary is that if you can manage the complexity yourself, you can get a much better deal. E.g., why the Mondinice 126 and the LTK266DSL felt / feel like such good deals for this audience.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: kungie on October 17, 2025, 02:42:26 PM
I'm surprised to see Mondince has the model listed on their website. I'm inquiring, but I wonder if this was up during the campaign and they haven't taken it down, or if they put this up after ending the campaign: https://mondincecycle.com/product/2026-one-piece-monocoque-eps-t1100-carbon-fiber-aero-road-bike-frame-fm126#aa
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: bichler.bua on November 05, 2025, 12:29:14 AM
Just had contact with Jack, seems they will start the mold for the FM126 in size 54.
I was looking (actually backed up Indiegogo and got the money refunded) for the 61, which will be last.
Anyway, good to see progress on the first mold
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Freddy__HH on November 11, 2025, 01:46:41 AM
Some news

OK. Great. We will do the mold next week for FM126 frame size 54cm.

I will keep you informed.
:

Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: tumtm on November 11, 2025, 02:37:25 AM
Will the 49 cm size be sold?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on November 11, 2025, 05:00:40 AM
Sad, I already took my money elsewhere. But I will be interested to see where this goes. If this goes interesting enough, I might get and build one.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on November 12, 2025, 06:05:42 AM
i actually email them yesterday about the frame, but unfortunately some things seems to have changed.. like weight and price since the indiegogo campaign.

This is the answer i got.

Thanks for your liking of our new ultra light aero road bike frame FM126.
The frame weight will be the same as the website. The weight for size 54cm will be 900g for size 54cm, UD Matt finished and hardware.
And the cost is USD850 for frame, fork, seatpost, super light aero integrated handlebar, axles and headset; The shipping cost to Sweden is USD150 by DPD.
One color painting is USD60, and USD80 for two colors. And we did not do metallic painting. If you book now, we can give you USD100 discount.


If i remember correctly, the frame was erlier sub-800g weight, and price was around USD750 incl. paint/gold hardware (or around 650 the cheper variant unpainted/black hardware) i think that price was without handlebars though.  So around $120 more expensive, and 100g heavier if i remember correctly.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on November 12, 2025, 08:15:46 AM
They are also going to stick with 32C.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Abobich on November 12, 2025, 08:27:15 AM
If i remember correctly, the frame was erlier sub-800g weight, and price was around USD750 incl. paint/gold hardware (or around 650 the cheper variant unpainted/black hardware) i think that price was without handlebars though.  So around $120 more expensive, and 100g heavier if i remember correctly.
Sub 800g was claimed for raw carbon in size 49 without metal parts
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on November 12, 2025, 08:32:36 AM
They are also going to stick with 32C.

Have you got this answer from them, and they have said that 32mm clearance is final?

I got some more answers.. frame WITHOUT handlebars is US$765.
Also as Abobich says.. 900gm is for 54 frame with hardware.. if going for 54 Raw carbon, then weight is 840g with hardware according to their last email to me.

So price is $765+$60-80(paint)+$150(shipping)-$100 discount for preorder. So $875-895 depending on if i choose 1 or 2 color paint.
Really thinking about possibly getting this frame.

Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on November 12, 2025, 08:57:44 AM
yeah.
just spoke with Jack.
It is going to be 32C, furthermore they are going to do it in two molds and glue the frame together with carbon bonding
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Requiem84 on November 12, 2025, 11:40:43 AM
Wrong thread.

Looking forward to the 56 going into production. Will snag one up.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: ThiloK on November 12, 2025, 03:30:05 PM
The indiegogo campaign was 750USD but shipping to europe was included, so it's quite a bit more expensive now
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: jovivamo on November 13, 2025, 07:57:14 AM

He contacted me via WhatsApp and said he could keep the price
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on November 13, 2025, 10:31:07 AM
How much is he quoting you then?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: ThiloK on November 13, 2025, 06:01:36 PM
I got quoted 850 USD with handlebars and 760 USD without. The campaign was 595€, so it's about 60€/10% more expensive. Don't know of shipping is extra now, it was included in the campaign

Edit shipping is not included and costs 150USD

That makes the bike ~220USD more expensive than the indiegogo campaign

The information is also very inconsistent, I asked for any changes in the mold or tyre clearance and he denied any changes to the indiegogo campaign
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on November 14, 2025, 12:06:14 AM
Officially it always said 32c clearance in the campaign. But i think Serge talked with them about this, and they said they would change that to 35c. But i dont think that info ever changed on the indiegogo page.
I emailed them again asking about this.. the answer now was; The frame will take 32c tires with 5.5mm clearance, so you will be able to fit 35c tires if you want. But officially they say 32c.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Requiem84 on November 25, 2025, 10:37:39 AM
Anyone received a frame yet?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Serge_K on November 25, 2025, 02:28:55 PM
Officially it always said 32c clearance in the campaign. But i think Serge talked with them about this, and they said they would change that to 35c. But i dont think that info ever changed on the indiegogo page.

Correct.
Financially you're not compensated anymore for committing so early.
Saying yes to everything upfront and figure things out / deny things later, is sketchy.
If it's not great value, hasn't seen a wind tunnel, is a sketchy process, and timelines are completely blind, well...
I stopped counting on this for the 2026 season myself.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: bigApple on November 26, 2025, 03:32:06 AM
Anyone got an update from Jack so far?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on November 26, 2025, 03:59:22 AM
Anyone received a frame yet?

manufacturing start is 2026-01-11 according to mondince... sooo quite certain nobody have one yet  ;D
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: kungie on November 28, 2025, 12:23:03 PM
For anyone who has ordered the 54, is it still coming with the gold hardware (thru axle, etc) shown on the Indiegogo campaign?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on November 29, 2025, 10:22:51 AM
Nope, black hardware now according to conversation i had with them earlier this month.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on December 08, 2025, 08:33:33 AM
Any updates yet?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on December 11, 2025, 03:59:45 AM
On some of the photos you can see the bottom bracket pertruding from the frame with a small "lip". Is this normal for most T47I bike frames? It seems weird to me, but what do I know.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on December 11, 2025, 06:47:23 AM
On some of the photos you can see the bottom bracket pertruding from the frame with a small "lip". Is this normal for most T47I bike frames? It seems weird to me, but what do I know.

Since T47i is quite wide it have to be that way, if you don't want to make the frame wider around that aera.. nothing strange with that.. and since this is a road aero-bike with 32c clearance, they probably don't wanna make the frame wider than needed.

I'm still debating if i should order this frame or not. Quite interested in it, but it's alot of money, especially compared to the indiegogo campaign!
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: mangart on December 11, 2025, 07:23:34 AM
They are also on the geometry chart. I ask via WhatsApp.

any news about this handlebar?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: bigApple on December 11, 2025, 08:06:38 AM
Latest update i have is:
We will have size 54cm in 20 days. The mold is almost finished.
And as for the handlebar, we will have 380-90/100, 400-100/110; 420-110/120mm

Unfortunately, no Aero sizes. I need 380/120 mm.
The handlebar they offer is too wide or too short.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on December 11, 2025, 10:41:18 AM
GEOMETRY WARNING: Mondince FM126 (Sizes 56+)

While the new Mondince FM126 looks like a standard open-mold aero racer, if you are a taller rider looking at sizes 56, 58, or 61, there is a critical detail in the geometry chart that will drastically affect the ride.

On paper, the geometry looks very similar to the Specialized Tarmac SL8. However, due to a specific choice with the fork offset, the handling on the larger sizes will be significantly different (and likely much twitchier) than you might expect.

The Issue: Fork Rake vs. Head Angle Most manufacturers shorten the fork rake (offset) on large frames to keep the bike stable as the head angle gets steeper.

Specialized: Uses 47mm rake for sizes <54, but switches to 44mm for sizes 54+.
Mondince: Uses a 47mm rake fork across ALL sizes (I suspect saving on mould costs).

When you combine that relatively long 47mm rake with the steep 74° head angle of the Size 61, the "Trail" figure drops to dangerous lows (sub-50mm), essentially giving you track-bike steering on a large road frame.

Bike Model (Size)Head AngleFork RakeTrail (Approx)Handling Character
Mondince FM126 (61)74.0°47mm~49mmExtremely Twitchy / Unstable
Specialized Tarmac SL8 (61)74.0°44mm~52mmVery Agile / Reactive
Trek Madone Gen 8 (XL)73.9°41mm~57mmNeutral Race Stability
Factor Ostro VAM (61)73.3°43mm~58mmNeutral Race Stability
Canyon Aeroad CFR (XL)73.25°38mm~64mmVery Stable / Planted

Why Specialized is also an outlier (but Mondince is worse) You'll notice the Tarmac SL8 is also quite low trail (~52mm) compared to the "safe" 57mm+ of Trek or Canyon. I suspect Specialized does this intentionally to make their large bikes feel agile, counteracting the high center of gravity of a tall rider. But even Specialized knows when to stop. They invest in a specific 44mm offset fork to keep the trail above 50mm. Mondince seemingly skipped this step to save on a second fork mold, pushing the handling from "agile" to "unstable."

Can they fix it? Since this frame is reportedly in a "Soft Launch", Mondince actually has a chance to fix this for the larger molds before they are final.

The Fix: They don't even need a new fork. If they simply slackened the Head Tube Angle to ~73° on sizes 56+, the existing 47mm fork would yield a perfect ~56mm of trail.

The Result: This would transform the bike from a nervous outlier into a stable, neutral racer comparable to the Trek Madone or Factor Ostro.

Conclusion So don't think you will get "one bike to do it all" just yet.
-Stack/Reach: Seems good
-Aero: Seems aero enough
-Weight: Seems light enough
-Handling: Major Red Flag for sizes 56+
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on December 11, 2025, 10:51:24 AM
Notes:
-I know geometry personal preference for a large part, I am sorry if my opinion comes across as factual (altough almost all of it is factual)

-I know different use-cases require different geometries, but this is completly different bike in different sizes (from a balanced road bike to a hyper-twitchy crit machine only for the extremely experienced)

-I have contacted Mondince about my concerns via Whatsapp and will keep you updated
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on December 11, 2025, 11:29:19 AM
Although this isn’t the response I was hoping for: I really wanted to love this bike, but it’s a no for me.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: jfcb on December 11, 2025, 01:30:33 PM
I think I already brought it up earlier in this thread that I don't understand why they go that steep in the larger sizes. It's all ok for a flat solo time trial, but in scenarios like cornering, bike handling in groups and descending it would be a no go for me since the bike very likely will feel to twitchy and nervous.
So yes, I share your thoughts and concerns. Keeping it at 73.3deg for sizes L and XL would make more sense. Geometry is something where those chinese brands lack experience. Compared to western brands, there are not many engineers or designers in those companies who are pasionate cyclists themselves and understand how bike geometry affects bike handling.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on December 11, 2025, 03:30:00 PM
I think I already brought it up earlier in this thread that I don't understand why they go that steep in the larger sizes. It's all ok for a flat solo time trial, but in scenarios like cornering, bike handling in groups and descending it would be a no go for me since the bike very likely will feel to twitchy and nervous.
So yes, I share your thoughts and concerns. Keeping it at 73.3deg for sizes L and XL would make more sense. Geometry is something where those chinese brands lack experience. Compared to western brands, there are not many engineers or designers in those companies who are pasionate cyclists themselves and understand how bike geometry affects bike handling.
The only way to make the 74° HT work is with a different fork but they probably dont want to invest money in a new fork mould.
If they are willing to change the HT to something slacker, they can make the fork work but then they dont have 1:1 SL8 geometry (change one thing, open a can of worms, what they already did with the fork offset lol)

If i was an engineer i would do the following for the size 61 (my size but concepts can transfer to all larger size):
-74° -> 73° HT (pushes front axle +-10mm, balances trail, makes bike more stable)
-410mm ->415-420mm chainstay lenght (corrects weight distribution from making HT slacker, makes the bike more "sluggish")

This results in a bike with +-17mm wheelbase and more trail (from 49 to +-57 mm) making it way more predictable
This wont make the bike too sluggish tough! wheelbase would be comparable to XL Aeroad (1029mm) compared to 1032mm proposal

I know this is all armchair-engineer but it seems like they also hire them at Mondince, doing a copy-past job half-ass.



Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on December 11, 2025, 07:34:28 PM
GEOMETRY WARNING: Mondince FM126 (Sizes 56+)

While the new Mondince FM126 looks like a standard open-mold aero racer, if you are a taller rider looking at sizes 56, 58, or 61, there is a critical detail in the geometry chart that will drastically affect the ride.

On paper, the geometry looks very similar to the Specialized Tarmac SL8. However, due to a specific choice with the fork offset, the handling on the larger sizes will be significantly different (and likely much twitchier) than you might expect.

The Issue: Fork Rake vs. Head Angle Most manufacturers shorten the fork rake (offset) on large frames to keep the bike stable as the head angle gets steeper.

Specialized: Uses 47mm rake for sizes <54, but switches to 44mm for sizes 54+.
Mondince: Uses a 47mm rake fork across ALL sizes (I suspect saving on mould costs).

When you combine that relatively long 47mm rake with the steep 74° head angle of the Size 61, the "Trail" figure drops to dangerous lows (sub-50mm), essentially giving you track-bike steering on a large road frame.

Bike Model (Size)Head AngleFork RakeTrail (Approx)Handling Character
Mondince FM126 (61)74.0°47mm~49mmExtremely Twitchy / Unstable
Specialized Tarmac SL8 (61)74.0°44mm~52mmVery Agile / Reactive
Trek Madone Gen 8 (XL)73.9°41mm~57mmNeutral Race Stability
Factor Ostro VAM (61)73.3°43mm~58mmNeutral Race Stability
Canyon Aeroad CFR (XL)73.25°38mm~64mmVery Stable / Planted

Why Specialized is also an outlier (but Mondince is worse) You'll notice the Tarmac SL8 is also quite low trail (~52mm) compared to the "safe" 57mm+ of Trek or Canyon. I suspect Specialized does this intentionally to make their large bikes feel agile, counteracting the high center of gravity of a tall rider. But even Specialized knows when to stop. They invest in a specific 44mm offset fork to keep the trail above 50mm. Mondince seemingly skipped this step to save on a second fork mold, pushing the handling from "agile" to "unstable."

Can they fix it? Since this frame is reportedly in a "Soft Launch", Mondince actually has a chance to fix this for the larger molds before they are final.

The Fix: They don't even need a new fork. If they simply slackened the Head Tube Angle to ~73° on sizes 56+, the existing 47mm fork would yield a perfect ~56mm of trail.

The Result: This would transform the bike from a nervous outlier into a stable, neutral racer comparable to the Trek Madone or Factor Ostro.

Conclusion So don't think you will get "one bike to do it all" just yet.
-Stack/Reach: Seems good
-Aero: Seems aero enough
-Weight: Seems light enough
-Handling: Major Red Flag for sizes 56+

Hey, I think it's worth taking a step back here and understanding what trail is or isn't.

Trail is not a primary driver when modeling the handling limits or characteristics of a 2-wheeled system. Trail governs how a bike feels to control, particularly during turn-in when you initiate a countersteer. There are people like me who prefer the feel of a lower-trail bike geometry, particularly with lower-pressure tires we use on the road now, as those increase what is known as pneumatic trail and have a similar feeling effect to mechanical trail. Another way to balance lower trail in terms of feel is to lower the system's center of mass, which Mondinice is also not doing, likely because they want to preserve crank clearance.

HTA, Wheelbase, and F/R weight distribution are primary drivers with regards to the handling limits of a 2-wheeled system, and it's clear to me that for large road bikes, designers consistently balance those three similarly. Those are not being done differently than other designs for this bike. Of course, ideally, you have 2-3 fork rake settings so you can get both the feel and handling you want, but a 52mm or even 49mm trail isn't the end of the world, particularly if you use larger tires at lower pressure. Even better would be to offer multiple chainstay lengths while keeping the HTA relatively consistent, but that isn't common on carbon bikes for cost reasons.

I do not think this bike design is a sign of amateur hour or a half assed job at Mondinice, just a reflection of their budget constraints.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on December 12, 2025, 04:21:31 AM
Hey, I think it's worth taking a step back here and understanding what trail is or isn't.

Trail is not a primary driver when modeling the handling limits or characteristics of a 2-wheeled system. Trail governs how a bike feels to control, particularly during turn-in when you initiate a countersteer.

I think you are significantly understating the role of trail here.

While you are correct that wheelbase and weight distribution define the ultimate grip limits (physics), Trail is the primary driver of directional stability (dynamics).

My warning isn't about the bike sliding out at the limit. It's about the caster effect: the self-centering force that keeps a bike stable at speed. A trail of ~49mm provides very little of this self-correcting force. This doesn't mean the bike will crash, but it means it requires constant, active micro-corrections to stay on line.
There are people like me who prefer the feel of a lower-trail bike geometry, particularly with lower-pressure tires we use on the road now, as those increase what is known as pneumatic trail and have a similar feeling effect to mechanical trail. Another way to balance lower trail in terms of feel is to lower the system's center of mass, which Mondinice is also not doing, likely because they want to preserve crank clearance.

HTA, Wheelbase, and F/R weight distribution are primary drivers with regards to the handling limits of a 2-wheeled system, and it's clear to me that for large road bikes, designers consistently balance those three similarly. Those are not being done differently than other designs for this bike. Of course, ideally, you have 2-3 fork rake settings so you can get both the feel and handling you want, but a 52mm or even 49mm trail isn't the end of the world, particularly if you use larger tires at lower pressure. Even better would be to offer multiple chainstay lengths while keeping the HTA relatively consistent, but that isn't common on carbon bikes for cost reasons.
Fair points on pneumatic trail; modern tires definitely help add stability back into the system.

However, the FM126 remains a massive outlier. Sub-50mm mechanical trail on a size 61 is significantly sharper than any major western road bike. My post serves as a warning for buyers expecting the neutral, "all-round" handling of a Tarmac SL8 will be disappointed by the nervousness of the steering.

I do not think this bike design is a sign of amateur hour or a half assed job at Mondinice, just a reflection of their budget constraints.
There is also a fine line between cost-saving and incompetent engineering. Using a single fork mold to save money is understandable, but they could have simply slackened the Head Tube Angle to ~73° to compensate. That adjustment costs nothing in production. Retaining a steep 74° HTA with that specific fork offset isn't a budget constraint; it’s a failure to check the math.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on December 12, 2025, 09:09:04 AM
I think you are significantly understating the role of trail here.

While you are correct that wheelbase and weight distribution define the ultimate grip limits (physics), Trail is the primary driver of directional stability (dynamics).

Have you actually tried to build a model of this? Trail ends up being a secondary variable in your capsize model. The primary one most related to trail is HTA, which makes sense when you realize that trail is actually a calculated property that relates HTA to front center (as well as COM height to some extent)

This does not entirely excuse this design as its still less than ideal. 74 deg is a compromise, not something that is dangerous, and neither is 50mm of mechanical trail. You can't just slacken the HTA without lengthening the chainstay, as you are changing the bike's weight distribution. IMO, this is usually a worse outcome than an HTA that is not the ideal number. Balancing tradeoffs is the challenge here.

For bike frames made in single-piece molds, I do hope we start to see more size-specific rear triangle designs.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on December 12, 2025, 02:06:10 PM
Have you actually tried to build a model of this? Trail ends up being a secondary variable in your capsize model...
Fair points on the physics modeling.
* You are right that in a pure physics 'capsize model,' trail is just one variable among many.
* Yes, Trail is mathematically a derivative of HTA and Offset.
* We agree this is a compromise design, not necessarily a 'broken' one.

You can't just slacken the HTA without lengthening the chainstay, as you are changing the bike's weight distribution. IMO, this is usually a worse outcome than an HTA that is not the ideal number. Balancing tradeoffs is the challenge here.

Here is where I disagree. Your concern that slackening the HTA without lengthening the chainstays leads to a "worse outcome" is theoretically sound, but it is practically disproven by the market.

I compiled the geometry for the Size 61/XL equivalents of current aero-bikes. The industry consensus is actually to do exactly what you described as a negative trade-off: combine a slacker HTA (~73-73.5°) with short chainstays (~410mm).

Bike Model (Size 61/XL)HTAFork OffsetChainstayTrail (Approx)
Factor Ostro VAM73.3°43 mm410 mm57 mm
Canyon Aeroad CFR73.5°44 mm415 mm56 mm
Scott Foil RC73.3°45 mm412 mm55 mm
Pinarello Dogma F73.4°43 mm411 mm58 mm
Specialized Tarmac SL874.0°44 mm410 mm52 mm
Trek Madone Gen 873.9°40 mm412 mm57 mm
Cervélo S573.5°43.5 mm405 mm56 mm
Cannondale SuperSix73.0°45 mm410 mm57 mm
Bianchi Oltre RC73.0°43 mm412 mm59 mm
Colnago V4Rs73.1°43 mm408 mm58 mm
MARKET AVERAGE73.4°43.4 mm410.5 mm~56.5 mm
(I did not cherry-pick these; these are the current flagships. If I made any mistakes, please let me know and I will edit, some figures like offset have conflicting/hard to find data).

Virtually no one (except Specialized) is running a 74° HTA on a size 61, and even Specialized pays for a custom 44mm offset fork to make it work. Everyone else slacks the head angle to ~73.4° and keeps the chainstays tight at ~410mm.

This highlights why the current FM126 is such an outlier. It tries to hold the steep HTA of the Tarmac but lacks the correct fork offset to support it. At first I didn't believe it myself. I assumed there was a compromise somewhere I was missing, but the FM126 really is the extreme outlier here.

ScenarioHTAOffsetTrailNotes
Current FM126 (61)74°47 mm~49 mmCurrent Setup (Unstable outlier)
Ideal FM126 (Change HTA)73.3°47 mm~53 mmUses existing fork mold
Ideal FM126 (Change Fork)74°44 mm~52 mmRequires new fork mold

If Mondince simply slackened the HTA to 73.3 (Option 1), the bike would land almost exactly on the market averages. The resulting trail would be ~53mm—still fast and agile (similar to Factor/Pinarello), but far safer than the sub-50mm geometry they have now.

That wouldn't be a "worse outcome" for weight distribution; it would just be a normal, modern road bike.

@Sakizashi I don't want to argue for the sake of it, or have a useless discussion about choice of words. I just want to share my findings and opinions so people don't buy a cat in a bag!
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on December 12, 2025, 06:27:34 PM
I know you just made a high effort post, and I promise I am not trying to move the goalposts on you, but what you care about with regards to chainstay length is how it affects the location of the wheels' contact points with the ground, with relation to the rider's center of mass. You just did the wrong analysis.

When doing the right analysis, you need to take into account the wheelbase relative to the BB, and the saddle position dictated by the STA. On a single design, I can tell you that the front-center contribution to the wheel base goes up if you slacken the HT and make no other changes, but I can't look at just an HTA and assume that a slacker one has a longer front center.

Here is where I disagree. Your concern that slackening the HTA without lengthening the chainstays leads to a "worse outcome" is theoretically sound, but it is practically disproven by the market.

I compiled the geometry for the Size 61/XL equivalents of current aero-bikes. The industry consensus is actually to do exactly what you described as a negative trade-off: combine a slacker HTA (~73-73.5°) with short chainstays (~410mm).

Fit data is antithetical to the physics behind bikes at the extremes of the size ranges, both small and large. This is explicitly done to cut costs. I am not here to defend Mondinice and their design, far from it. However, the bikes in your chart are making more than just HTA and fork rake, etc, to make their designs work. You will see very different curves applied to the Stack to Reach ratio across these brands, too, if you try to map those; it's just part of how different engineers accept slightly different compromises.

I guess since we agree that the 61 size likely should sink low on someone's purchasing list, my objection was simply to using the wrong analysis to accuse the engineers at Mondinice of being bad at their jobs. I just see them as being held to a really tight budget.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on December 22, 2025, 05:13:11 PM
I will probably order this frame now, in size 54. Just have a few questions regarding paint to them. Trail wont be a problem in sz 54. It will probably be around 54mm with 32c tires if i calculated correctly.
The only problem is that i dont even know if i will have money/parts to finish it for the summer 😅😅 so expensive if one wants wireless 2x12 sram or upcoming Shimano ultegra.

Mondince are waiting for finalizing size 54 prototype, then after that i will put in an order. Will probably mimic the 3T RaceMax in its yellow/black coloring scheme.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Serge_K on January 07, 2026, 04:18:52 AM
Videos from Jack of the prototype.
this frame obviously isn't monocoque.   <--- Turns out, it should say ONE PIECE MONOCOQUE. The original frame was supposed to come from one mould. This is coming from 2 moulds. How much that matters to the end customer is beyond my pay grade.
the fork looks fast
i like the BB area, looks stiff
I like that the downtube looks fast.
it looks like my LT268, but meaner, i like it.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on January 07, 2026, 12:31:13 PM
Videos from Jack of the prototype.
this frame obviously isn't monocoque.
the fork looks fast
i like the BB area, looks stiff
I like that the downtube looks fast.
it looks like my LT268, but meaner, i like it.

The frame literally is monocoque.

https://en.wikipedia.org/wiki/Monocoque

Stop misusing the term, I am sure there are people very confused about this. Particularly those who actually make stuff.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Serge_K on January 07, 2026, 12:36:52 PM
The frame literally is monocoque.

https://en.wikipedia.org/wiki/Monocoque

Stop misusing the term, I am sure there are people very confused about this. Particularly those who actually make stuff.

For bikes, isn't monocoque when the 2 triangles aren't glued together, but the whole frames comes from 1 mold? In the video, isn't it clear that the triangles are glued together?

I'd bet that people on here have on average the same understanding as me on that point, so if that's wrong, please come off your high horse and enlighten us peasants instead of smugly pointing to old ass plane pictures on wikipedia.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: gribs on January 07, 2026, 12:42:44 PM
I think the confusion comes from their original listing. "Carbon One-Piece-Monocoque-Construction EPS". This frame is clearly not made in one piece but is almost certainly a monocoque like practically every other carbon fibre frame.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on January 07, 2026, 12:46:21 PM
For bikes, isn't monocoque when the 2 triangles aren't glued together, but the whole frames comes from 1 mold? In the video, isn't it clear that the triangles are glued together?

I'd bet that people on here have on average the same understanding as me on that point, so if that's wrong, please come off your high horse and enlighten us peasants instead of smugly pointing to old ass plane pictures on wikipedia.

Monocoque is a technical term regarding the structure's design, not its construction method. It's not bicycle specific. I've tried explaining this to you over and over, and you have insisted on pushing the wrong definition for a technical design attribute. Manufacturers will call something like what you are suggesting a "single mold design" or "single mold monocoque"

Stop misusing a term that confuses people in an effort to make it look like you know something you don't. It just creates confusion about terminology, where some manufacturers claim a monocoque frame (which I think happens a lot) when it is not made in a single piece and has joints like this one. Besides there is even a bicycle example in that Wikipedia article :)

Edit: for everyone's benefit here is the definition Wikipedia offers for Monocoque: Monocoque (/ˈmɒnəkɒk, -koʊk/ MON-ə-ko(h)k), also called structural skin, is a structural system in which loads are supported by an object's external skin, in a manner similar to an egg shell. The word monocoque is a French term for "single shell".[1]
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Serge_K on January 08, 2026, 01:18:51 AM
Monocoque is a technical term regarding the structure's design, not its construction method. It's not bicycle specific. I've tried explaining this to you over and over, and you have insisted on pushing the wrong definition for a technical design attribute. Manufacturers will call something like what you are suggesting a "single mold design" or "single mold monocoque"

Stop misusing a term that confuses people in an effort to make it look like you know something you don't. It just creates confusion about terminology, where some manufacturers claim a monocoque frame (which I think happens a lot) when it is not made in a single piece and has joints like this one. Besides there is even a bicycle example in that Wikipedia article :)

Edit: for everyone's benefit here is the definition Wikipedia offers for Monocoque: Monocoque (/ˈmɒnəkɒk, -koʊk/ MON-ə-ko(h)k), also called structural skin, is a structural system in which loads are supported by an object's external skin, in a manner similar to an egg shell. The word monocoque is a French term for "single shell".[1]

I must have learning disabilities, because you write more, and it still makes no sense to me.
I expect a binary outcome, for bike stuff: what is, and what isn't, a monocoque bike frame, sire, Holder of Wisdom for us plebs?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Requiem84 on January 08, 2026, 01:47:55 AM
I must have learning disabilities, because you write more, and it still makes no sense to me.
I expect a binary outcome, for bike stuff: what is, and what isn't, a monocoque bike frame, sire, Holder of Wisdom for us plebs?

I think it’s pretty clear.

All frames are monocoque. That term is used incorrectly by (some) people.

What you seem to mean is ‘one piece monocoque’.

Good addition imo, I didn’t know this to be honest and there is no shame in admitting that. I’m happy that I learned something new.

Much prefer that over ‘being right’.

Anyway, I really can’t wait for the first experiences of this frame. The looks are a banger. Now hoping quality will be great too.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: gribs on January 08, 2026, 02:21:44 PM
I must have learning disabilities, because you write more, and it still makes no sense to me.
I expect a binary outcome, for bike stuff: what is, and what isn't, a monocoque bike frame, sire, Holder of Wisdom for us plebs?

A monocoque bike frame is what pretty much any modern carbon frame is. A non-monocoque frame would typically be the traditional lug and tube construction. Atherton bikes are a good example using carbon tubes and titanium lugs. Gamux are another mtb example but use a solid machined metal frame.

Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: sOKRATEs100 on January 08, 2026, 04:13:26 PM
Jack Ding replied to me that they will have 56/58 size soon-ish.

Did someone got a frame yet?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Serge_K on January 12, 2026, 03:50:07 AM
A monocoque bike frame is what pretty much any modern carbon frame is. A non-monocoque frame would typically be the traditional lug and tube construction. Atherton bikes are a good example using carbon tubes and titanium lugs. Gamux are another mtb example but use a solid machined metal frame.

Ah. Is that it? I'm french, so monocoque means 1 piece, pretty literally. One piece monocoque then becomes monocoque moncoque, or one piece one piece, which sounds redundant if not retarded.
mono-coque. one-shell. If you glue 2 pieces together i dont see how it's any more 1 shell than if you weld lugs and tubes together, but i guess here we are.

And from my various discussions with chinese sellers, when the topic of monocoque comes up, it's to say that they use one mould, not 2, that the tooling costs more, that it's more premium, lalala. It is possible that they mean / imply one piece monocoque, because they speak chinese to begin with so idk how they translate the nuance, but saying a carbon frame is monocoque to mean it's made gluing 2 triangles is like saying a carbon frame is made with carbon fiber. Or that walnuts are vegan, the sun is hot, and water wet.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on January 12, 2026, 10:14:28 AM
Ah. Is that it? I'm french, so monocoque means 1 piece, pretty literally. One piece monocoque then becomes monocoque moncoque, or one piece one piece, which sounds redundant if not retarded.
mono-coque. one-shell. If you glue 2 pieces together i dont see how it's any more 1 shell than if you weld lugs and tubes together, but i guess here we are.

And from my various discussions with chinese sellers, when the topic of monocoque comes up, it's to say that they use one mould, not 2, that the tooling costs more, that it's more premium, lalala. It is possible that they mean / imply one piece monocoque, because they speak chinese to begin with so idk how they translate the nuance, but saying a carbon frame is monocoque to mean it's made gluing 2 triangles is like saying a carbon frame is made with carbon fiber. Or that walnuts are vegan, the sun is hot, and water wet.


I think some Chinese sellers are trying to communicate with you what the product is and work around the misunderstood terms. They are just trying to do a good job helping you understand why a product costs more. If you use the word "monocoque," they probably will just use it to get through the conversation. The language barrier is real, and there are three languages to work with here: English, Chinese, and Western engineering speak.

There are also still a few modern non-monocoque carbon road frames out there. The Enve Custom Road and the Colnago C68 are additional examples.

I normally wouldn't bother to engage with this misuse of terms, except that it's now being used to evaluate whether a frame is worth buying, rather than just describing something esoteric. Once we move that language into common discussion, ensuring that it actually means something is important. Because "monocoque" refers to how loads are supported, there is likely to be a difference in ride feel between how a monocoque and a non-monocoque frame that are otherwise visually identical. On the other side, the consequence of having a frame molded in one piece vs. 2 bonded together is likely just a tradeoff of less weight vs. lower cost as the loads are supported the same way, its just glued together slightly differently.

In other words, the real issue with this frame moving to a separate rear triangle mold is a few grams, which is probably not much to worry about for an aero frame like this.

As to the person who confusingly coined the term. IDK, he was some French guy. Just don't google "is water wet" and blame me for the result.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: BeR on January 12, 2026, 10:56:53 AM
Maybe we could use monocoque monobloc.

https://haidelibikes.com/fr/blog/what-is-a-monocoque-one-piece-bicycle-frame-and-why-are-cyclists-switching-to-it/

PS : I agree with Serge because I am french too 😅.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on January 12, 2026, 11:32:10 AM
Maybe we could use monocoque monobloc.

https://haidelibikes.com/fr/blog/what-is-a-monocoque-one-piece-bicycle-frame-and-why-are-cyclists-switching-to-it/

PS : I agree with Serge because I am french too 😅.

A couple of companies — mostly Italian — have been using the term "true monocoque" as a marketing term to imply their use of modular molds to make custom frames in one piece. I prefer to point out that it's likely not a difference that matters to the end consumer whether a layup has many pieces or if pieces are joined, as the end product uses the same load bearing principles
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Requiem84 on January 19, 2026, 09:38:27 AM
Any updates on this frame?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Serge_K on January 21, 2026, 09:59:45 AM
From Jack:

Check attached pictures for this FM126 with our logo.
And we have ultra light version from 860-960g UD Matt with hardware; And super light version 960-1060g UD Matt with hardware; All screws are Titanium.

Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Sakizashi on January 21, 2026, 10:26:44 AM
From Jack:

Check attached pictures for this FM126 with our logo.
And we have ultra light version from 860-960g UD Matt with hardware; And super light version 960-1060g UD Matt with hardware; All screws are Titanium.

That looks really good to my eye. I have some questions about how aero it is, particularly that DT, but I do like the visual design as it looks balanced and very modern.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on January 21, 2026, 12:03:41 PM
IN REGARDS TO GEOMETRY.
They changed the HT angle 73 for size 56, 58 and 61 respectively to increase trail!
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: casper.f on January 21, 2026, 12:55:29 PM
IN REGARDS TO GEOMETRY.
They changed the HT angle 73 for size 56, 58 and 61 respectively to increase trail!

Where did you find this? on mondincecycle.com still the original.
I tought he was lying when saying "we'll look into it", props to them
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Uberflo on January 21, 2026, 01:01:11 PM
They also send me a video. Rider weight limit is 100 kg.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on January 21, 2026, 01:21:56 PM
I asked for their geometry chart as I realised they very rarely if ever update their website.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: CARLOS5 on January 21, 2026, 02:03:37 PM
Does anyone know the price of this frame? It looks incredible and the weight in the super light version is very 🔝. If you have more information it would be of great help
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Serge_K on January 22, 2026, 02:06:12 AM
IN REGARDS TO GEOMETRY.
They changed the HT angle 73 for size 56, 58 and 61 respectively to increase trail!

We really are looking at how the sausage is being made, in the sense that they changed course 10x since the summer. My point here, i wonder / hope that these geometry charts actually end up reflected in reality, because changing geometry charts when you're at the same time popping frames from at least one mould makes me wonder / worry. Hopefully / let's assume the changes are on sizes for which they havent ordered moulds yet.
More generally, the nero show on YT recently commented on chinese brands releasing too many skus, models, versions, so it gets very confusing for the end customer. I agree :)
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Dark17 on January 22, 2026, 03:25:06 AM
From Jack:

Check attached pictures for this FM126 with our logo.
And we have ultra light version from 860-960g UD Matt with hardware; And super light version 960-1060g UD Matt with hardware; All screws are Titanium.

They forgot to blur that they are making frames for MAI lol
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: kungie on January 22, 2026, 08:25:13 AM
Jack is crushing it! Last time I asked, 58 was targeted for April...

Has anyone started thinking about how they would paint theirs? Last I heard, they can do up to 3 colors. No idea what the price would be.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Vasegaard on January 23, 2026, 02:19:22 AM
Is the 100 kg limit on the frame a little weird or is that normal?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: bigApple on January 23, 2026, 02:26:36 AM
Still not ready to order rigth? They are testing the 54cm now?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: g0zdzik on January 23, 2026, 03:02:21 AM
According to Angle from Mondince "size 52/56/58 molds will be finished this month".
Taking into account Chinise New Year I assume an orders will start at end of March/beginning of April.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on January 29, 2026, 03:06:13 AM
The size 54 which was said to be avaliable Januari 11th, is now pushed back even further.. "The frame will be avaliable during March" is the answer i got when i mailed them yesterday.
So i'll be waiting. I will order one as soon as it is possible.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Yozha on February 01, 2026, 03:37:26 AM
And what about the price, do You already know what to expect?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on February 01, 2026, 11:33:19 AM
And what about the price, do You already know what to expect?

Check this post i made earlier.

https://chinertown.com/index.php/topic,6308.msg97025.html#msg97025
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: bsharp77 on February 12, 2026, 12:56:55 PM
Has anyone received a frame yet?
I emailed and was told 54cm now available.
Quoted $950 delivered for the super light version.

I want to build up a lightweight aero frameset this year and this looks really good.
I’d just love some real world figures or reviews on it.
Hard to know whether to take a punt on something like this (or Peters upcoming aero frameset)  or wait for a Propel frameset on sale.

Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Rolle2k on February 12, 2026, 04:52:12 PM
Has anyone received a frame yet?
I emailed and was told 54cm now available.
Quoted $950 delivered for the super light version.

I want to build up a lightweight aero frameset this year and this looks really good.
I’d just love some real world figures or reviews on it.
Hard to know whether to take a punt on something like this (or Peters upcoming aero frameset)  or wait for a Propel frameset on sale.

I'm waiting for Invoice and will pay as soon as I ger it. Jack said he will send ut after chinese new years. So i dont think its Ready to order until that. 😊
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Champirs on February 13, 2026, 10:00:52 AM
21 march 56 size
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Champirs on February 14, 2026, 11:19:17 AM
Hi!Has anyone ordered the painting and what date did they receive? Thanks
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Joda55 on February 27, 2026, 07:51:00 AM
I have pre-ordered this frame as well now! Got the discount too. 611 EUR, without handlebars, incl shipping.

I ordered the size 58 but thinking about sizing down to 56. I'm 185 cm and have always been riding 58s but the difference in stack is quite significant here and the 56 would certainly be faster since the difference in reach is quite small.
This should be fine normally, I could just adjust with spacers and stem if needed. But I want to add TT aero clip on bars on this bike and wondering if the 56 would be unsuited for this.
Anyone have any thoughts on this?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Serge_K on March 16, 2026, 10:08:07 AM
Jack sent me the attached.
M and L molds are ready for production.
I think pricing is ~$750+150 shipping to EU for frameset with bars, with 1 colour. (headline price, no discount)
Not cheap, but looks good!


I have pre-ordered this frame as well now! Got the discount too. 611 EUR, without handlebars, incl shipping.
I want to add TT aero clip on bars on this bike and wondering if the 56 would be unsuited for this.
611 eur = 700$, if shipping is 150, that's 550$ w/o bars and i assume w/o paint.
If TT, you probably want the highest stack possible.
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Tpower59 on March 16, 2026, 12:53:39 PM
Jack sent me the attached.
M and L molds are ready for production.
I think pricing is ~$750+150 shipping to EU for frameset with bars, with 1 colour. (headline price, no discount)
Not cheap, but looks good!

611 eur = 700$, if shipping is 150, that's 550$ w/o bars and i assume w/o paint.
If TT, you probably want the highest stack possible.

Did you go for it ? Is it really different from your LT268 ?
So they only have white color ?
Title: Re: Long Teng / Mondince aero frame FM126 Indiegogo
Post by: Serge_K on March 17, 2026, 03:21:12 AM
Did you go for it ? Is it really different from your LT268 ?
So they only have white color ?

No, i'm just posting the picture as an FYI for forum users.
Too similar to my LT268, in fact. Back in the summer, the frame was supposed to be 34C if not 35C, i forgot, and be cheap, and light, and aero, and tralala. Now, it seems it's only 32C, so doesnt make sense for me, the 268 is not only 32C, but it's a generous 32C, my 32C conti measures 34.5mm and i have plenty of space. I'd consider upgrading for something that's 34 or 35C for more grip, better puncture protection, and generally being more relaxed about hairpins and shitty road surfaces, but this isn't the frame for that anymore, unfortunately. And it's not cheap anymore either. It's still good value, but it's not the no brainer that it was last summer.
I'm sure they have every colour you can dream of, paint is paint.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Rolle2k on March 17, 2026, 10:00:31 AM
It is supposed to be 32c with 5.5+5.5mm clearance.. so if you are ok with 4mm clearance it will take 35mm WAM tires.
Mine is supposed to be shipped quite soon. But i don't even know if i will finish the build this summer (quite short summer in northern Scandinavia).
Will probably look for new Ultegra once it releases.. :-)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on March 21, 2026, 08:47:49 PM
Do you know the exact size of the headset bearing used ?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Tpower59 on March 25, 2026, 09:36:06 AM
Do you know the exact size of the headset bearing used ?

(https://cdn.images.indiegogo.com/richtextimage/richtext/004363e0-ce87-4948-883c-6ab301feb569.jpg)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: maxx-st on March 27, 2026, 05:03:28 PM
Contacted the seller, size 61 not available yet with no expected release-date.
Unfortunately have to keep looking for a similar frame
Title: Re: Long Teng / Mondince aero frame FM126
Post by: casper.f on March 28, 2026, 11:29:31 AM
Contacted the seller, size 61 not available yet with no expected release-date.
Unfortunately have to keep looking for a similar frame
Altough its far from the same frame category: the LCR018D is an option looking at stack and reach.
LCR in 58: 606 stack (+ a mandatory bearing cap of 8mm) and a 396 reach
FM126 in 61: 612 stack, 408 reach
So running a stem thats 10mm longer gets you into +-2mm on stack and reach at least.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on March 29, 2026, 07:41:50 PM
Looking to build up a new bike and been reading a lot of the threads on this forum.

I had pretty much made my mind on getting the Speeder SC-R55D. However despite an initial response from Justin letting me know the price, I havent heard back from him when I sent a few follow up questions and said I wanted to order.

Came across the FM126 today. Are we able to order one off frames? The Mondice website for this frame says MOQ of 20?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Rolle2k on March 30, 2026, 01:21:45 AM
Came across the FM126 today. Are we able to order one off frames? The Mondice website for this frame says MOQ of 20?

Yes, you can order single frames. There seems like it is no longer MOQ of 20pcs.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on March 30, 2026, 07:39:58 PM
Yes, you can order single frames. There seems like it is no longer MOQ of 20pcs.

This is correct. I am in contact with them. Very fast to respond. Very likely going to order. Would you folks reccomend the handlebar that comes with it or suggest another one?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: kungie on March 30, 2026, 08:13:55 PM
I’ve already ordered. I’m planning to use the handlebars included for the indefinite time unless I don’t like them. Was interested in these from lightcarbon before realizing handlebars come with the bike: https://www.lightcarbon.com/ultra-light-and-aero-carbon-road-integrated-handlebar_p257.html
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Tpower59 on April 01, 2026, 05:31:16 PM
I’ve already ordered. I’m planning to use the handlebars included for the indefinite time unless I don’t like them. Was interested in these from lightcarbon before realizing handlebars come with the bike: https://www.lightcarbon.com/ultra-light-and-aero-carbon-road-integrated-handlebar_p257.html

When are you expected to be delivered ?

I asked him about size 58 : it is under testing so not ready yet
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Rolle2k on April 02, 2026, 06:54:41 AM
Mine was supposed to be ready two weeks ago, but they have not finished it yet. (Ordered size 54, so first size ready) Havent gotten a reason why. But hopefully it will be finished soon.  :)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Takiyaki on April 02, 2026, 09:45:54 AM
Has anyone received these yet?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on April 02, 2026, 06:02:04 PM
They priced me the frame + handlebar or just the frame on its own. The one in the picture on the Mondice F1M126 page looks kinda chunky compared to that HB17 you linked. Price of Handlebar was an extra 65 USD, not sure if thats a decent price vs buying standalonem, plus if I'd have additional shipping costs if I order seperately.

https://mondincecycle.com/product/2026-super-light-monocoque-eps-t1100-carbon-fiber-aero-road-bike-frame-fm126

I’ve already ordered. I’m planning to use the handlebars included for the indefinite time unless I don’t like them. Was interested in these from lightcarbon before realizing handlebars come with the bike: https://www.lightcarbon.com/ultra-light-and-aero-carbon-road-integrated-handlebar_p257.html
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Lukas_W on April 15, 2026, 12:19:54 PM
Any news from anyone who's ordered the frame?
I'm also thinking about getting one, but I'm still undecided.

Does anyone know if the picture tpower posted with the multicolored frame was by mondince? I find the color combinations appealing and wonder if they could achieve such a good paint job.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Vasegaard on April 28, 2026, 04:07:50 AM
What do people think in regards to this frame conspred to peters new aerys vrt?  Geo is different. How do you guys think they compare in terms aero capabilities?
800 usd difference is pretty huge.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Lotnik on April 28, 2026, 04:18:03 AM
What do people think in regards to this frame conspred to peters new aerys vrt?  Geo is different. How do you guys think they compare in terms aero capabilities?
800 usd difference is pretty huge.
It depends how much of your ride time you spend at speeds 45kmh+? If less than 50% aero gains will be marginal ;)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on April 28, 2026, 06:10:38 AM
It depends how much of your ride time you spend at speeds 45kmh+? If less than 50% aero gains will be marginal ;)

Who said Peter's frame tests faster?

What do people think in regards to this frame conspred to peters new aerys vrt?  Geo is different. How do you guys think they compare in terms aero capabilities?
800 usd difference is pretty huge.
Assuming you end up in the same position, the only difference i see is Peter's head tube is more shaped, presumably narrower (hourglass shape), which should save you a couple of watts at 45kmh. Whether that's worth 800$... :)
One difference worth noting is the seat clamp system. Mondince uses a standard system, Peter went exotic. Plenty of frames have had failures with that system, Chinese & branded.
If it's my money, i'm buying a Mondince tomorrow because it's made by Long Teng, and my daily driver is a Long Teng. It's served me well, and it's cheap. If i break it tomorrow, i can buy a new one without crying. A friend remarked last time I crashed that i didn't even look at my bike. He rides a dura ace s works sl7 and one of his biggest fears is breaking his frame. I said "meh" and smiled. There is value in not being afraid to abuse your kit.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on April 28, 2026, 02:05:00 PM
Hello everyone. I just received my FM126 frame from LT/Mondince yesterday. This was my first time ordering something like this. I was dealing with Jack over Whatsapp. He was very good at answering questions, always got back to me no later than next day due to time difference.

The pacakge came via UPS to Canada. No damage to the box, all the parts inside was well wrapped styrophome/bubble wrap individually. No concern about shipping damage at all. 10/10 for this. 

I have a small mini-cam scope. Purchased it to inspect a clogged pipe few years ago. Might have a peak on the inside with it.

Let me know if you have any questions.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Rolle2k on April 28, 2026, 04:27:43 PM
What size did you order - and what about weight? :-)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: pscrs on April 29, 2026, 06:13:50 AM
Let me know if you have any questions.
Made of questions! Really keen to see more pictures of tube shapes etc, but also pictures of what they provide in terms of headset parts so I know what im dealing with ahead of receiving the frame. Boroscope images of the inside of the frame would be really cool to see!
Not sure if anyone else knows if the seat post clamp plays nicely with oval railed saddles?
I'm planning on getting mine NDT tested when it arrives (time/budget permitting) See if I can get any insights into quality of the frame.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Shayzzz on April 29, 2026, 10:18:42 AM
Hey,

Do you think that the size 58 would work for me ? I’m 191cm tall…. :/

Thank you
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Takiyaki on April 29, 2026, 02:34:38 PM
Hello everyone. I just received my FM126 frame from LT/Mondince yesterday. This was my first time ordering something like this. I was dealing with Jack over Whatsapp. He was very good at answering questions, always got back to me no later than next day due to time difference.

The pacakge came via UPS to Canada. No damage to the box, all the parts inside was well wrapped styrophome/bubble wrap individually. No concern about shipping damage at all. 10/10 for this. 

I have a small mini-cam scope. Purchased it to inspect a clogged pipe few years ago. Might have a peak on the inside with it.

Let me know if you have any questions.
We need:

- Photos
- Component weights
- Measured tire/wheel clearances

I completely forgot about this frame and it's def a main contender. But Im waiting to see how it goes for others.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on April 30, 2026, 01:27:06 AM
We need:

- Photos
- Component weights
- Measured tire/wheel clearances

I completely forgot about this frame and it's def a main contender. But Im waiting to see how it goes for others.

It is the same for me, i am really interested in the frame. Pictures of the build and some infos how the quality is (bottom bracket, breaks mounts, headset etc.) would be really great.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Shayzzz on April 30, 2026, 08:46:13 AM
Hello everyone. I just received my FM126 frame from LT/Mondince yesterday. This was my first time ordering something like this. I was dealing with Jack over Whatsapp. He was very good at answering questions, always got back to me no later than next day due to time difference.

The pacakge came via UPS to Canada. No damage to the box, all the parts inside was well wrapped styrophome/bubble wrap individually. No concern about shipping damage at all. 10/10 for this. 

I have a small mini-cam scope. Purchased it to inspect a clogged pipe few years ago. Might have a peak on the inside with it.

Let me know if you have any questions.

Hey, so how is the frame quality please ? Did you have time to inspect the inside of the frame ?

Thank you
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on April 30, 2026, 11:56:15 AM
Hello everyone. I just received my FM126 frame from LT/Mondince yesterday. This was my first time ordering something like this. I was dealing with Jack over Whatsapp. He was very good at answering questions, always got back to me no later than next day due to time difference.

The pacakge came via UPS to Canada. No damage to the box, all the parts inside was well wrapped styrophome/bubble wrap individually. No concern about shipping damage at all. 10/10 for this. 

I have a small mini-cam scope. Purchased it to inspect a clogged pipe few years ago. Might have a peak on the inside with it.

Let me know if you have any questions.

Hi All - Sorry was bit busy last two days. Here is some more info for you.

- Size 56, painted with pearl gloss finish
- Frame weight is 1055 grams w/ both hangers and the cage bolts. This is the 'Superlight' version. I was told the 'Ultralight' version was 100g lighter, but it was going to cost extra $100USD so passed on that option.
- Fork weight is 498g uncut
- Handlebar is 377g
- Seatpost is 227g
- Haven't measured weight of all the bits

Measured tire/wheel clearances... I put in my GP5000 28mm (seem to measure 29mm wide, I dont have a capiler tool), there was a good 10mm on each side, and 16mm to the top. I tried to put in my gravel wheelset which has Hutchison Caracal Rate 40mm (measure more like 45mm wide). They did not fit, but it it was not so much the width, this just didn't fit, it was to the top part of the underside of the fork that didn't have space so I couldn't get the wheel in enough to put the through axel. I think the frame might fit up to 38mm width tires.   

Bottom bracket area seems good so far. I was able to put the bottom braket in by hand easily so no threads were all good. Facing seems good all over.

In addition to the Frame, Fork, and Seatpost, the hardware included was headset bearings, race, headset spacers system, UDH rear hanger, standard front hanger, seatpost 45degree angle lock, di2 internal holder thing, seatpost-frame rubber thing, seatpost clamps for round or oval style rails, and through axels. The only had gold colored front hanger and bottle cage bolts when mine shipped.

Haven't had a chance to scope the inside, but from what I can see inside, the carbon is all very smooth

I will get around to posting pictures asap. The headtube front profile is not as 'hourglassy' as XMCS new aero frame AERYS, and seems a bit less sharp in some of the lines and angles, but the AERYS is ~$1900USD according to Patrick Lino's recent review, so the LT/Mondince is 1/3 the price. 
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on April 30, 2026, 12:35:25 PM
Hi All - Sorry was bit busy last two days. Here is some more info for you.

- Size 56, painted with pearl gloss finish
- Frame weight is 1055 grams w/ both hangers and the cage bolts. This is the 'Superlight' version. I was told the 'Ultralight' version was 100g lighter, but it was going to cost extra $100USD so passed on that option.
- Fork weight is 498g uncut
- Handlebar is 377g
- Seatpost is 227g
- Haven't measured weight of all the bits

Measured tire/wheel clearances... I put in my GP5000 28mm (seem to measure 29mm wide, I dont have a capiler tool), there was a good 10mm on each side, and 16mm to the top. I tried to put in my gravel wheelset which has Hutchison Caracal Rate 40mm (measure more like 45mm wide). They did not fit, but it it was not so much the width, this just didn't fit, it was to the top part of the underside of the fork that didn't have space so I couldn't get the wheel in enough to put the through axel. I think the frame might fit up to 38mm width tires.   

Bottom bracket area seems good so far. I was able to put the bottom braket in by hand easily so no threads were all good. Facing seems good all over.

In addition to the Frame, Fork, and Seatpost, the hardware included was headset bearings, race, headset spacers system, UDH rear hanger, standard front hanger, seatpost 45degree angle lock, di2 internal holder thing, seatpost-frame rubber thing, seatpost clamps for round or oval style rails, and through axels. The only had gold colored front hanger and bottle cage bolts when mine shipped.

Haven't had a chance to scope the inside, but from what I can see inside, the carbon is all very smooth

I will get around to posting pictures asap. The headtube front profile is not as 'hourglassy' as XMCS new aero frame AERYS, and seems a bit less sharp in some of the lines and angles, but the AERYS is ~$1900USD according to Patrick Lino's recent review, so the LT/Mondince is 1/3 the price.

Thanks for the first insights, that sounds great. How long did the order process take for and how was the shipping / any aditional taxes / duties?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Shayzzz on May 01, 2026, 09:46:25 AM
Hi All - Sorry was bit busy last two days. Here is some more info for you.

- Size 56, painted with pearl gloss finish
- Frame weight is 1055 grams w/ both hangers and the cage bolts. This is the 'Superlight' version. I was told the 'Ultralight' version was 100g lighter, but it was going to cost extra $100USD so passed on that option.
- Fork weight is 498g uncut
- Handlebar is 377g
- Seatpost is 227g
- Haven't measured weight of all the bits

Measured tire/wheel clearances... I put in my GP5000 28mm (seem to measure 29mm wide, I dont have a capiler tool), there was a good 10mm on each side, and 16mm to the top. I tried to put in my gravel wheelset which has Hutchison Caracal Rate 40mm (measure more like 45mm wide). They did not fit, but it it was not so much the width, this just didn't fit, it was to the top part of the underside of the fork that didn't have space so I couldn't get the wheel in enough to put the through axel. I think the frame might fit up to 38mm width tires.   

Bottom bracket area seems good so far. I was able to put the bottom braket in by hand easily so no threads were all good. Facing seems good all over.

In addition to the Frame, Fork, and Seatpost, the hardware included was headset bearings, race, headset spacers system, UDH rear hanger, standard front hanger, seatpost 45degree angle lock, di2 internal holder thing, seatpost-frame rubber thing, seatpost clamps for round or oval style rails, and through axels. The only had gold colored front hanger and bottle cage bolts when mine shipped.

Haven't had a chance to scope the inside, but from what I can see inside, the carbon is all very smooth

I will get around to posting pictures asap. The headtube front profile is not as 'hourglassy' as XMCS new aero frame AERYS, and seems a bit less sharp in some of the lines and angles, but the AERYS is ~$1900USD according to Patrick Lino's recent review, so the LT/Mondince is 1/3 the price.

Thank you for the details !

By any chance do you have some pictures of the frame (global picture and closeup pictures of the threads) please ?

Thank you 😊
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 01, 2026, 10:34:20 AM
I have taken a bunch of photos and scoped the inside. Have to run out for the afternoon, but will be posting an update tonight hopefully, and if I can built it up over the weekend. 
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Shayzzz on May 01, 2026, 10:36:34 AM
Thank you ! I'm just waiting for these pictures to maybe purchase one ahah.
Right now I have an order placed for the LCR018-D but I'm thinking about canceling for the FM126
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bsharp77 on May 01, 2026, 11:21:19 AM
Thank you ! I'm just waiting for these pictures to maybe purchase one ahah.
Right now I have an order placed for the LCR018-D but I'm thinking about canceling for the FM126

Interesting….i would class them as very different frames.
The LCR018-D is what if class as “endurance aero” but still a very rapid frame (I have one!).
Whereas if class the FM126 as an all out aero frame - especially interested in the ultra light version.

I’m actually considering one to go alongside my LCR018-D, also considering Peters new aero beast and finally waiting to see what LightCarbon come out with this year aero wise - it’ll probably be between those 3.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Shayzzz on May 01, 2026, 11:58:27 AM
Interesting….i would class them as very different frames.
The LCR018-D is what if class as “endurance aero” but still a very rapid frame (I have one!).
Whereas if class the FM126 as an all out aero frame - especially interested in the ultra light version.

I’m actually considering one to go alongside my LCR018-D, also considering Peters new aero beast and finally waiting to see what LightCarbon come out with this year aero wise - it’ll probably be between those 3.

Thanks for the insight, that’s really helpful coming from someone who actually rides the LCR018-D!
Here’s my dilemma, this would actually be my very first road bike. Originally I was leaning towards the LCR018-D for the more forgiving endurance geometry, which seems like the safer bet for a beginner.

But the more I read, the more I see people saying that modern aero frames like the FM126 aren’t as harsh as the old-school race bikes used to be, and that you can just set them up a bit more relaxed with spacers and a higher stem and adapt from there.

The idea of going straight to an aero frame and skipping the “buy endurance now, switch to aero later” path is tempting, and it also saves money and I’d only have to adapt once. But I genuinely don’t know if that’s realistic for someone who’s never ridden road before.

What was your experience like on the LCR018-D? And would you say the jump to something like the FM126 is manageable for someone starting out, or would you recommend building up on the endurance frame first? I know this is not necessarily the thread for that, so if needed you can PM me, thank you for the help.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Ludo on May 01, 2026, 01:13:14 PM
If you compare mondince 56 to LC 540, geometry are fairly similar, reach on mondince is 12mm more but just get a shorter stem and you get pretty much same riding position as LCR018
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Shayzzz on May 01, 2026, 01:27:44 PM
If you compare mondince 56 to LC 540, geometry are fairly similar, reach on mondince is 12mm more but just get a shorter stem and you get pretty much same riding position as LCR018

I am comparing both in size 58, I’m 191cm
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bsharp77 on May 01, 2026, 01:35:11 PM
Thanks for the insight, that’s really helpful coming from someone who actually rides the LCR018-D!
Here’s my dilemma, this would actually be my very first road bike. Originally I was leaning towards the LCR018-D for the more forgiving endurance geometry, which seems like the safer bet for a beginner.

But the more I read, the more I see people saying that modern aero frames like the FM126 aren’t as harsh as the old-school race bikes used to be, and that you can just set them up a bit more relaxed with spacers and a higher stem and adapt from there.

The idea of going straight to an aero frame and skipping the “buy endurance now, switch to aero later” path is tempting, and it also saves money and I’d only have to adapt once. But I genuinely don’t know if that’s realistic for someone who’s never ridden road before.

What was your experience like on the LCR018-D? And would you say the jump to something like the FM126 is manageable for someone starting out, or would you recommend building up on the endurance frame first? I know this is not necessarily the thread for that, so if needed you can PM me, thank you for the help.

The problem with the endurance tag is that everyone assumes a slow bike.
Nothing could be further from the truth - the LCR018-D is a stunning bike.
Comfortable yes, but fast - definitely. I have set lots of PBs in the last 2 months on it and I haven’t even fully dialled it in by cutting the fork yet!

I would heartily recommend it to anyone - I have no actual need to get another bike, it’s honestly that good - as a first bike it will give you more than you could ever ask for - at a silly price.
I don’t see it as a bike you’d upgrade from, rather one you keep and maybe get another bike down the line. I’ve absolutely no intention of selling mine. I use it every day at the minute, rain, hail or shine.

Title: Re: Long Teng / Mondince aero frame FM126
Post by: Ludo on May 01, 2026, 03:16:15 PM
I am comparing both in size 58, I’m 191cm
I am sure you can compare the appropriate size on the bike chart website
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Shayzzz on May 03, 2026, 08:36:57 PM
I have taken a bunch of photos and scoped the inside. Have to run out for the afternoon, but will be posting an update tonight hopefully, and if I can built it up over the weekend.

Hello :) Would it be possible for you to share the pictures please (even if it’s just the frame and not the full build) ?

Thank you 🙏
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on May 05, 2026, 09:03:33 AM
I am comparing both in size 58, I’m 191cm

Honestly, i'd go w the 18D because geo will allow you more stack and a reach at a given size (I assume). The taller you are, the more important it is to have stack if you want to be comfortable in an aero tuck. Also, 191cm means heavy means big tyres: on the 18D, you can get c.40mm wide rims, conti gp5000 35C tyres (the brand new ones) and i expect you would be a very happy camper.
You can convince yourself that the 18D may end up being faster because it should let you spend more time in tuck, and at 40kmh, a good tuck vs catching the wind is a massive difference in watts. If you ride with 2-3 people, it's very easy to get to 40kmh on the flat these days with modern bikes.
Basically, you're new, so you are throwing darts in the dark. Tall / heavy --> stack & tyre clearance is the safer bet. And the 18D is not a slow bike to begin with.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 05, 2026, 03:26:58 PM
Hi All - Sorry was bit busy last two days. Here is some more info for you.

- Size 56, painted with pearl gloss finish
- Frame weight is 1055 grams w/ both hangers and the cage bolts. This is the 'Superlight' version. I was told the 'Ultralight' version was 100g lighter, but it was going to cost extra $100USD so passed on that option.
- Fork weight is 498g uncut
- Handlebar is 377g
- Seatpost is 227g
- Haven't measured weight of all the bits

Measured tire/wheel clearances... I put in my GP5000 28mm (seem to measure 29mm wide, I dont have a capiler tool), there was a good 10mm on each side, and 16mm to the top. I tried to put in my gravel wheelset which has Hutchison Caracal Rate 40mm (measure more like 45mm wide). They did not fit, but it it was not so much the width, this just didn't fit, it was to the top part of the underside of the fork that didn't have space so I couldn't get the wheel in enough to put the through axel. I think the frame might fit up to 38mm width tires.   

Bottom bracket area seems good so far. I was able to put the bottom braket in by hand easily so no threads were all good. Facing seems good all over.

In addition to the Frame, Fork, and Seatpost, the hardware included was headset bearings, race, headset spacers system, UDH rear hanger, standard front hanger, seatpost 45degree angle lock, di2 internal holder thing, seatpost-frame rubber thing, seatpost clamps for round or oval style rails, and through axels. The only had gold colored front hanger and bottle cage bolts when mine shipped.

Haven't had a chance to scope the inside, but from what I can see inside, the carbon is all very smooth

I will get around to posting pictures asap. The headtube front profile is not as 'hourglassy' as XMCS new aero frame AERYS, and seems a bit less sharp in some of the lines and angles, but the AERYS is ~$1900USD according to Patrick Lino's recent review, so the LT/Mondince is 1/3 the price.

Here are some pictures of everything that was included in the box, some close up of the facing and some outside shots showing the pearl finish. Weekend had some nice (though windy) weather so was out riding ahead of a spell of raining days now.


Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 05, 2026, 03:43:56 PM
Here are some pictures of everything that was included in the box, some close up of the facing and some outside shots showing the pearl finish. Weekend had some nice (though windy) weather so was out riding ahead of a spell of raining days now.

Here are outside pics and the tire clearance pics with GP5000 28mm. A bit less room than my initial assumptions but I think could still fit 35s.

Title: Re: Long Teng / Mondince aero frame FM126
Post by: Ludo on May 05, 2026, 03:57:48 PM
Overall what is your initial feedback? Discussing with Jack and pretty close to hit the buy button…
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 05, 2026, 04:01:14 PM
Here are the scope pics. Everything in the scope was very clean and smooth, except you can see in the seattube and in the downtube, where the rivnuts were installed for bottle cages and FD hanger there is some fraying of the carbon layup (keep in mind this is zoomed in, compare the fray size to the rivnut which is prob 7.5mm) I used the Google and it seems this is normal and a "Sausage" Analogy, "no one likes to see how the sausage is made". Internal imperfections are often cosmetic and do not affect the safety of the ride. Nothing to worry about so long as:

1) Loose Rivnuts: If the threaded insert (rivnut) for the bottle cage spins or feels loose, it can wear through the carbon over time. (they are solid, no spinning etc)
2) Soft Spots: Press on the area around the bolts. If the carbon feels soft or "mushy," it may indicate internal delamination (layers separating). (there are no soft spots)
3) Expanding Cracks: Use a "tap test" with a coin. A sharp "tink" is good; a dull "thud" around the hole suggests deeper internal damage. (it all sounds the same)


Even though the google said it was okay, I was curious and so had a look inside my Factor LS frame. You can see the extra piece of carbon they have which prob prevents the fraying.

I sent the pics to Jack at Mondicne and he said it doesn't affect the frame stiffness/strength. And he said it is okay to share these pics. He said they will add extra 3k on future frames.   

Now to build it and see how it rides.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 05, 2026, 04:03:15 PM
Overall experience has been great. Obvioulsy haven't rode the frame yet so tbd on that. 
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 05, 2026, 04:14:10 PM
Thanks for the insight, that’s really helpful coming from someone who actually rides the LCR018-D!
Here’s my dilemma, this would actually be my very first road bike. Originally I was leaning towards the LCR018-D for the more forgiving endurance geometry, which seems like the safer bet for a beginner.

But the more I read, the more I see people saying that modern aero frames like the FM126 aren’t as harsh as the old-school race bikes used to be, and that you can just set them up a bit more relaxed with spacers and a higher stem and adapt from there.

The idea of going straight to an aero frame and skipping the “buy endurance now, switch to aero later” path is tempting, and it also saves money and I’d only have to adapt once. But I genuinely don’t know if that’s realistic for someone who’s never ridden road before.

What was your experience like on the LCR018-D? And would you say the jump to something like the FM126 is manageable for someone starting out, or would you recommend building up on the endurance frame first? I know this is not necessarily the thread for that, so if needed you can PM me, thank you for the help.

You say you are a 'beginner'... I would go with the 'endurance' geometry. You can't really go wrong with the 18D or similar style. If you really get into cycling, you can make this a dedicated groad/gravel bike, and then get a aero road bike. That is what I have done. Not sure your athletic background etc., but if you are beginner, the aero isn't going to matter too much anyway until you start riding 35kph avg ride speed and above. For example, I have the Factor LS that I'ved used for 2 years now (after starting with a Giant Defy with 32mms). I have to wheelsets for the Factor, a 25mm deep with 40mm tire set for gravel/groad, and 38mm deeep with 28mm tire for road only. The Factor is a gravel race bike so geo is a bit more aggressive than the Defy, but its still not a 'road race' geometry , and is also not as stiff, has longer wheelbase, etc etc. I have the Factor LS in crit race at avg 39kph for 45min, and also 35kph avg for 75km rides. I don't NEED an aero road bike, the Factor LS can literally do it all, as could the 18D. 
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 06, 2026, 04:03:59 AM
Here are some pictures of everything that was included in the box, some close up of the facing and some outside shots showing the pearl finish. Weekend had some nice (though windy) weather so was out riding ahead of a spell of raining days now.

Did you specifically order the metall hardware in silver and gold or can that be customised (Silver/Gold/Black)?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Ultramic on May 06, 2026, 04:41:07 AM
Those internal photos don't instill alot of confidence.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 06, 2026, 09:13:27 AM
Did you specifically order the metall hardware in silver and gold or can that be customised (Silver/Gold/Black)?

I did not specify could probably be customized.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 06, 2026, 11:51:24 AM
Those internal photos don't instill alot of confidence.

That was my first thought... I'm hoping the google is correct. Any other threads on here discussing this? Should I ask for a replacement frame?

I just scoped my two other carbon frames (2019 Giant Defy Advance 2, and 2010 Specialized Robouaix S-Works SL3) and neither of them had that type of fraying from the rivnuts and were clean like the Factor. I'd hope the S-Works would be clean given its cost of $8k USD in 2011 (I didn't buy it new hehe).

 

Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on May 06, 2026, 02:13:01 PM
That was my first thought... I'm hoping the google is correct. Any other threads on here discussing this? Should I ask for a replacement frame?

It looks bad but I really don't think it matters, the frayed bits look very small and it's not a light frame where every gram counts. 
I never looked inside my own frames for that, it's not too common to see such picturs. I suspect it's pretty common in frames, and I don't think we've ever heard horror stories from frame failure in this area. I haven't even heard of cage nuts becoming loose, to which id just say "fix back in place with epoxy and keep riding".
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 07, 2026, 11:12:37 AM
Here are the scope pics. Everything in the scope was very clean and smooth, except you can see in the seattube and in the downtube, where the rivnuts were installed for bottle cages and FD hanger there is some fraying of the carbon layup (keep in mind this is zoomed in, compare the fray size to the rivnut which is prob 7.5mm) I used the Google and it seems this is normal and a "Sausage" Analogy, "no one likes to see how the sausage is made". Internal imperfections are often cosmetic and do not affect the safety of the ride. Nothing to worry about so long as:

1) Loose Rivnuts: If the threaded insert (rivnut) for the bottle cage spins or feels loose, it can wear through the carbon over time. (they are solid, no spinning etc)
2) Soft Spots: Press on the area around the bolts. If the carbon feels soft or "mushy," it may indicate internal delamination (layers separating). (there are no soft spots)
3) Expanding Cracks: Use a "tap test" with a coin. A sharp "tink" is good; a dull "thud" around the hole suggests deeper internal damage. (it all sounds the same)


Even though the google said it was okay, I was curious and so had a look inside my Factor LS frame. You can see the extra piece of carbon they have which prob prevents the fraying.

I sent the pics to Jack at Mondicne and he said it doesn't affect the frame stiffness/strength. And he said it is okay to share these pics. He said they will add extra 3k on future frames.   

Now to build it and see how it rides.

I posted these pictures to Reddit to get some feedback. The most educated responses suggest its fine (See the attached image).

I'll ride it as planned and scope it again after like 1000kms.


Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 07, 2026, 11:33:23 AM
Thank you for all the information. I will get in contact with them regarding colours etc. Alternatively i am still looking at the new lightcarbon aero frame.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Ultramic on May 07, 2026, 04:05:44 PM
I posted these pictures to Reddit to get some feedback. The most educated responses suggest its fine (See the attached image).

I'll ride it as planned and scope it again after like 1000kms.

Thanks for sharing this and going the extra distance to get other opinions. It provides us future buyers that extra confidence.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 08, 2026, 07:37:29 AM
How long is / are the seatposts your ordered and what did you pay for the extra one. I think i will definitely need atleast a 35cm as i have a 78,6cm seat heigh (including the saddle).
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 09, 2026, 03:08:24 PM
I posted these pictures to Reddit to get some feedback. The most educated responses suggest its fine (See the attached image).

I'll ride it as planned and scope it again after like 1000kms.

Hi did you build up the bike yet? Also what size are you as you ordered the 56. I am 186cm with 89,7cm inseam and am debating between a 56 or 58.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Tpower59 on May 09, 2026, 04:20:00 PM
Hi did you build up the bike yet? Also what size are you as you ordered the 56. I am 186cm with 89,7cm inseam and am debating between a 56 or 58.

It is the same geo as SL8 same height as you and 88 inseam
I have a 58 with 0 offset Seatpost : perfect
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Shayzzz on May 13, 2026, 06:40:06 PM
Here are the scope pics. Everything in the scope was very clean and smooth, except you can see in the seattube and in the downtube, where the rivnuts were installed for bottle cages and FD hanger there is some fraying of the carbon layup (keep in mind this is zoomed in, compare the fray size to the rivnut which is prob 7.5mm) I used the Google and it seems this is normal and a "Sausage" Analogy, "no one likes to see how the sausage is made". Internal imperfections are often cosmetic and do not affect the safety of the ride. Nothing to worry about so long as:

1) Loose Rivnuts: If the threaded insert (rivnut) for the bottle cage spins or feels loose, it can wear through the carbon over time. (they are solid, no spinning etc)
2) Soft Spots: Press on the area around the bolts. If the carbon feels soft or "mushy," it may indicate internal delamination (layers separating). (there are no soft spots)
3) Expanding Cracks: Use a "tap test" with a coin. A sharp "tink" is good; a dull "thud" around the hole suggests deeper internal damage. (it all sounds the same)


Even though the google said it was okay, I was curious and so had a look inside my Factor LS frame. You can see the extra piece of carbon they have which prob prevents the fraying.

I sent the pics to Jack at Mondicne and he said it doesn't affect the frame stiffness/strength. And he said it is okay to share these pics. He said they will add extra 3k on future frames.   

Now to build it and see how it rides.



Hey, so did you ended up building your bike ? :)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 16, 2026, 01:52:21 PM
FYI, I should receive my frame next Tuesday (Size 54, white glossy) and be able to build it on Wednesday. I will make a long review about the quality (inside / outside) then the first ride.

If you want some specific pictures or if you have any questions, let me know.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 19, 2026, 12:53:43 AM
FYI, I should receive my frame next Tuesday (Size 54, white glossy) and be able to build it on Wednesday. I will make a long review about the quality (inside / outside) then the first ride.

If you want some specific pictures or if you have any questions, let me know.

Sounds great, i think a lot of us are looking forward for someone to share their build experience. It would be great to know some more base stats, for example if you ordered ultralight or superlight (and if you could throw the frame on a scale), if you got the handlebars etc.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 19, 2026, 01:09:25 AM
Sounds great, i think a lot of us are looking forward for someone to share their build experience. It would be great to know some more base stats, for example if you ordered ultralight or superlight (and if you could throw the frame on a scale), if you got the handlebars etc.

I will weight each part. I choose the SL version, not the UL. With the white color glossy, It should be the heaviest frame in size 54.

For thé handlebar, I bought one from SP cycle. The one which allows aerobar.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 19, 2026, 01:24:10 AM
My frame arrived yesterday.
I’m going to weigh the parts and maybe take a few pictures. At first glance, there are two drawbacks.
The fork doesn’t have an integrated cone, so you have to use one thats onto the fork crown. This makes the gap between the head tube and the fork crown relatively large, which isn’t very nice.
The biggest problem for me is that the seatpost has a minimum insertion depth of 120mm!
That means the seatpost is too short for me. Normally, a 350mm seatpost with a 100mm insertion depth is spot on for me with the SL8 geometry. So this seatpost is too short. Actually, I should probably sell the frame now. The seat height on the 54cm frame is therefore a maximum of 473mm + 220mm + 40mm = 733mm
My seat height is approx. 750mm

Damn it.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 19, 2026, 02:11:54 AM
My frame arrived yesterday.
I’m going to weigh the parts and maybe take a few pictures. At first glance, there are two drawbacks.
The fork doesn’t have an integrated cone, so you have to use one thats onto the fork crown. This makes the gap between the head tube and the fork crown relatively large, which isn’t very nice.
The biggest problem for me is that the seatpost has a minimum insertion depth of 120mm!
That means the seatpost is too short for me. Normally, a 350mm seatpost with a 100mm insertion depth is spot on for me with the SL8 geometry. So this seatpost is too short. Actually, I should probably sell the frame now. The seat height on the 54cm frame is therefore a maximum of 473mm + 220mm + 40mm = 733mm
My seat height is approx. 750mm

Damn it.

Could you send a picture of the cone and the gap that forms? And regarding the seatpost i was told they could also provide a 400mm seatpost. Maybe that is something you could get from them. Or maybe someone who orders the frame in a similar region to you could get two seatposts so that you dont have the shipping from china. Where are you from? I will probably be ordering one for me in germany.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 19, 2026, 03:11:02 AM
Could you send a picture of the cone and the gap that forms? And regarding the seatpost i was told they could also provide a 400mm seatpost. Maybe that is something you could get from them. Or maybe someone who orders the frame in a similar region to you could get two seatposts so that you dont have the shipping from china. Where are you from? I will probably be ordering one for me in germany.

Sure.

Indeed, He said that the seatpost is 400 mm (will check this after receiving the frame). I asked for one setback and no offset searposts.

From France.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on May 19, 2026, 03:17:31 AM
My frame arrived yesterday.
I’m going to weigh the parts and maybe take a few pictures. At first glance, there are two drawbacks.
The fork doesn’t have an integrated cone, so you have to use one thats onto the fork crown. This makes the gap between the head tube and the fork crown relatively large, which isn’t very nice.
The biggest problem for me is that the seatpost has a minimum insertion depth of 120mm!
That means the seatpost is too short for me. Normally, a 350mm seatpost with a 100mm insertion depth is spot on for me with the SL8 geometry. So this seatpost is too short. Actually, I should probably sell the frame now. The seat height on the 54cm frame is therefore a maximum of 473mm + 220mm + 40mm = 733mm
My seat height is approx. 750mm

Damn it.

By all means, confirm w Jack, but it's an OEM frame, not a boutique build from the future, so i doubt they put much thought into min seatpost insertion. More likely, they just wrote something because that's what you do.
The clamp system is also a classic one (battle tested for eons), not the crappy one on the gran turismo / factor / pinarello (I think?) where you tighten 2 tiny screws from the back.
Therefore, if typical seat post insertion is 10cm, you can probably get away using 10cm.
I write this as someone with long legs and a lot of exposed seat post.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 19, 2026, 03:20:43 AM
Pictures of the crown an the gap
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 19, 2026, 03:24:54 AM
For comparison LCR018D
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 19, 2026, 03:41:29 AM
Pictures of the crown an the gap

Crown is mandatory ?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Lotnik on May 19, 2026, 03:44:25 AM
Pictures of the crown an the gap
Have you confirmed that this crown is needed? It doesn't look like the attached crown fit the fork.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 19, 2026, 03:55:08 AM
Crown is mandatory ?
100% Sure. Without the crown, so only with the bearings, the headtube touches the fork.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 19, 2026, 03:57:27 AM
Pictures of the crown an the gap

I think in the final product the gap wont be as big. As far as i know the crown race should rest directly on the fork so the gap should only be minimally bigger than with an integrated crown (I am no expert though ;)). From my point that aint a dealbreaker and as i said i will probably order the frame as well, maybe i can just get a second seatpost with 400mm as well. I will need that too as i need a 56 frame with a seatheight of 785mm of Seatheight (minus 40/50mm for the saddle).
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 19, 2026, 04:09:38 AM
I am from germany too, close to Frankfurt. Maybe you can ask how much an additional seatpost is.  ;)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 19, 2026, 05:12:21 AM
I am from germany too, close to Frankfurt. Maybe you can ask how much an additional seatpost is.  ;)

I will ask him, probably not that much. Only problem will be delivery time, if you cant use your current seatpost you will probaby have to wait 6-8 weeks. And regarding the crown race, you didnt hammer it down completely in the pictures your shared. I think the gap will be just a bit bigger than an integrated crown.

FYI: Extra Seatpost would be 35 Euro and no additional shipping if i order it. He also told me 100mm or even 90mm is fine. So just as someone already predicted they don't have any special minimal insertion length. I will try an SL8 on the weekend and then finalize my order next week. If you need the 400mm seatpost just let me know and i will get one extra (just need to know if you need setback).
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Ultramic on May 19, 2026, 07:31:28 AM
Pictures of the crown an the gap

Double check the height of the bearings are not different. It should be a standard MH-P16 bearing which comes in 7mm or 8mm heights. Assuming both your bearings are 8mm, you might need to buy a 7mm to reduce the gap. Otherwise, I would say that gap is probably normal for a Chinese build given manufacturing tolerances.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 19, 2026, 07:39:56 AM
Its already the 7mm bearing. Frame came with 2x8mm und 1x7mm bearings.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 19, 2026, 07:41:25 AM
More Pictures. The downtube is actually crazy narrow.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 19, 2026, 07:59:09 AM
More Pictures. The downtube is actually crazy narrow.

Looks pretty cool, how deep are those wheels  ;D. Will be interesting to hear how it rides in the next few days.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 19, 2026, 08:17:11 AM
Frame without udh hanger an without fd mount is 920g
Fork uncut 495g
Seatpost 0 setback 190g

Wheels are 78/65mm.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 19, 2026, 02:33:47 PM
100% Sure. Without the crown, so only with the bearings, the headtube touches the fork.

Mine came with the crownrace and when I asked Jack he said it was needed. I used a piece of PVC to try and set the race and I don't think it will go down any farther. Mine has about a 3mm gap, larger than my 'brand name' bikes, I never paid attention to this before. I expect even serious bikers wouldnt notice anything. I think its like AMG Mercedes owners, 99% of population would know difference between C300 and C63s AMG but there is BIG difference.

Re Bearings. Jack said, 8mm is for the upper, and 7mm is for the lower, but if you need you can use the 8mm in the bottom.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 19, 2026, 02:36:08 PM
Mine came with the crownrace and when I asked Jack he said it was needed. I used a piece of PVC to try and set the race and I don't think it will go down any farther. Mine has about a 3mm gap, larger than my 'brand name' bikes, I never paid attention to this before. I expect even serious bikers wouldnt notice anything. I think its like AMG Mercedes owners, 99% of population would know difference between C300 and C63s AMG but there is BIG difference.

Re Bearings. Jack said, 8mm is for the upper, and 7mm is for the lower, but if you need you can use the 8mm in the bottom.

Ok but did you get it seated on the bottom of the fork? In the one close up there was a gap between the fork and the crown which looked quite big.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 19, 2026, 02:40:44 PM
My frame arrived yesterday.
I’m going to weigh the parts and maybe take a few pictures. At first glance, there are two drawbacks.
The fork doesn’t have an integrated cone, so you have to use one thats onto the fork crown. This makes the gap between the head tube and the fork crown relatively large, which isn’t very nice.
The biggest problem for me is that the seatpost has a minimum insertion depth of 120mm!
That means the seatpost is too short for me. Normally, a 350mm seatpost with a 100mm insertion depth is spot on for me with the SL8 geometry. So this seatpost is too short. Actually, I should probably sell the frame now. The seat height on the 54cm frame is therefore a maximum of 473mm + 220mm + 40mm = 733mm
My seat height is approx. 750mm

Damn it.

I just measured my FM126. With the seatpost inserted to the 120mm minimum, I have a crank to top of seat of ~805mm.

My seatpost is inserted to the 170 mark on the seatpost, and the crank to top of seat is 755mm.

You will be fine.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 19, 2026, 02:52:20 PM
Ok but did you get it seated on the bottom of the fork? In the one close up there was a gap between the fork and the crown which looked quite big.

Just checked...  its not resting on the bottom of the fork, there is prob 1mm between crownrace flange and flat part of fork. Maybe I didn't hit the PVC pipe hard enough, but I thought I was giving it a decent enough wack.  I did do some googling, and it said that for the crownrace that has the little opening (can't remember what that type is called atm), that they do not have to 'go all the way down' as thats part of the design feature, whereas, the other style that doesn't have the little opening, they do need to go all the way down.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 19, 2026, 03:30:06 PM


Hey, so did you ended up building your bike ? :)

@shayzzz and @Leon1234

Not yet, I'm waiting for some internal cable foam housing dampener - should be here this week.

Popped on the fork, handlebar, crank and rear deraulier temporarily just to get a sense and it will look excellent!
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gemcxx on May 20, 2026, 10:36:26 AM
Just checked...  its not resting on the bottom of the fork, there is prob 1mm between crownrace flange and flat part of fork. Maybe I didn't hit the PVC pipe hard enough, but I thought I was giving it a decent enough wack.  I did do some googling, and it said that for the crownrace that has the little opening (can't remember what that type is called atm), that they do not have to 'go all the way down' as thats part of the design feature, whereas, the other style that doesn't have the little opening, they do need to go all the way down.

Ok so I re=googled, I was wrong, it is saying a slotted crownrace should sit flush on the fork crown. 
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 20, 2026, 12:38:58 PM
Ok so I re=googled, I was wrong, it is saying a slotted crownrace should sit flush on the fork crown.
Ok so then the gap will become smaller and it will look quite normal just like an integrated crown, that's perfect I would say:)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 20, 2026, 01:43:07 PM
That's how it should be. It's not possible with the fork that came with the bike and the fork crown or headset. I don't have a solution for that yet.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 20, 2026, 01:54:04 PM
That's how it should be. It's not possible with the fork that came with the bike and the fork crown or headset. I don't have a solution for that yet.

There are some Tricks online for example putting the fork in the freezer and heating the crown race in boiling water. Did anyone else manage to put it on completely?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 20, 2026, 03:36:59 PM
More pictures and review tomorrow or on Friday.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 21, 2026, 12:20:48 AM
More pictures and review tomorrow or on Friday.

Are those the bar and spacers from mondice? The lowest spacer looks really tall compared to the others?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 21, 2026, 01:19:05 AM
Are those the bar and spacers from mondice? The lowest spacer looks really tall compared to the others?

The handlebar and the spacers come from SP-cycle.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 21, 2026, 02:06:49 AM
The handlebar and the spacers come from SP-cycle.

Is the gap between the fork and the headtube with the crown race sitting directly on the bottom on the fork? That looks quite big.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 21, 2026, 02:17:15 AM
I measured the bearing seats on the frame, and they match the specifications in the FSA manual for integrated headsets exactly. According to that, the gap between the headset and the frame should be less than 1 mm. I think Mondince completely messed up the fork crown. They should have just chosen a cone integrated into the fork, like every other manufacturer. I’ve now ordered an FSA ACR headset and will see if it improves the situation.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 21, 2026, 02:27:33 AM
Is the gap between the fork and the headtube with the crown race sitting directly on the bottom on the fork? That looks quite big.
Yes with a 7 mm height bearing.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 21, 2026, 02:33:36 AM
I measured the bearing seats on the frame, and they match the specifications in the FSA manual for integrated headsets exactly. According to that, the gap between the headset and the frame should be less than 1 mm. I think Mondince completely messed up the fork crown. They should have just chosen a cone integrated into the fork, like every other manufacturer. I’ve now ordered an FSA ACR headset and will see if it improves the situation.

Depends on what mondice messed up. If they only messed up the crown race ring then that could help. If the fork itself is the problem then it wont help the situation if i understand it correctly. Has anyone asked mondice about it?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 21, 2026, 02:56:23 AM
Depends on what mondice messed up. If they only messed up the crown race ring then that could help. If the fork itself is the problem then it wont help the situation if i understand it correctly. Has anyone asked mondice about it?

Try to install a 6,5 mm height bearing instead of 7 mm.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 21, 2026, 03:22:50 AM
Try to install a 6,5 mm height bearing instead of 7 mm.

I dont have the bike but i am / was quite interested. But as of now it does not look that good.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Tpower59 on May 21, 2026, 04:26:37 AM
The handlebar and the spacers come from SP-cycle.

What is the weight of your build ? And size ?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 21, 2026, 04:51:19 AM
What is the weight of your build ? And size ?

Frame (white, SL size 54, the heaviest finish) with thru-axles, derailleur hangers, bolts...: 1172 g

Uncut fork: 549 g
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Freddy__HH on May 21, 2026, 06:26:28 AM
As of now, I am kinda glad I did not wait for the FM126 and went with another frame instead...
Title: Re: Long Teng / Mondince aero frame FM126
Post by: pscrs on May 21, 2026, 06:29:33 AM
Regarding peoples concern with the crown race and fork shape. I don't think that this fork has in integrated crown race but that lip is an error. Those who have frames in hand i think should let Jack know of this error see if there's any recourse for a redesigned fork that either has a  proper integrated crown race or has a flat transition. I don't have my frame yet however I think may approach will be to machine a new crown race that adds minimal stack and has a relief in the back to bypass that horrible steerer to crown transition.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 21, 2026, 06:39:54 AM
Regarding peoples concern with the crown race and fork shape. I don't think that this fork has in integrated crown race but that lip is an error. Those who have frames in hand i think should let Jack know of this error see if there's any recourse for a redesigned fork that either has a  proper integrated crown race or has a flat transition. I don't have my frame yet however I think may approach will be to machine a new crown race that adds minimal stack and has a relief in the back to bypass that horrible steerer to crown transition.

Yes they probably have some manufacturing error. That gap does not look proper. I am not sure why they would even choose this route.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: pscrs on May 21, 2026, 06:47:09 AM
Yes they probably have some manufacturing error. That gap does not look proper. I am not sure why they would even choose this route.

How they missed this is bit of mystery to me surely someone tried to dry fit all of this at some point, less than ideal. I just hope that the lip is  small enough such that there is enough space to machine in the relief on the back side of the crown race. I cant say im wild about removing material to shape this fork to properly accept a crown race.
My brother works carbon fibre manufacturing ill get his opinion on viable approaches.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 21, 2026, 07:31:22 AM
How they missed this is bit of mystery to me surely someone tried to dry fit all of this at some point, less than ideal. I just hope that the lip is  small enough such that there is enough space to machine in the relief on the back side of the crown race. I cant say im wild about removing material to shape this fork to properly accept a crown race.
My brother works carbon fibre manufacturing ill get his opinion on viable approaches.

Yes that does not make sense to me as well. If only one person has the problem i would say its just an error but this looks like something is fundamentally wrong with their design. Someone should definitely contact them. Maybe they can offer a replacement fork (if they overhaul their product).
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 21, 2026, 09:09:50 AM
Mondince is aware of the issue with the Crown Race and is sending a new version that allows for a smaller gap. They are very responsive. Kudos to them.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 21, 2026, 09:11:32 AM
Mondince is aware of the issue with the Crown Race and is sending a new version that allows for a smaller gap. They are very responsive. Kudos to them.

Sounds good, so its just a problem with the small metall crown race? Then maybe the fsa headset kit would fix the problem as well.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 21, 2026, 09:12:48 AM
Sounds good, so its just a problem with the small metall crown race? Then maybe the fsa headset kit would fix the problem as well.

Yes. I don't know if the FSA headset would fix the problem as well.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 21, 2026, 09:16:07 AM
For your information, it's purely a cosmetic issue, not a safety concern.

I'll give you an update as soon as I've tried it (today or tomorrow). I'm really looking forward to it.

Edit : Mondince has just sent me a video of the new crown race (curve inside the crown). It will fit perfectly.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: kungie on May 21, 2026, 10:04:01 AM
I'm receiving mine today - curious to see/hear if this is specific to you, or all frames sent out to date have this problem.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: patliean1 on May 21, 2026, 10:13:41 AM
So I had buddy who runs his own private OEM brand through Mondince put me in contact with them earlier this week. Truthfully I never really heard of Mondince until this forum. And nothing but high remarks from my friend. This was his idea that I connect with them.

Anyway, I'm working on getting a frameset for long term review. My suspicion though is the frame probably won't deliver until mid to late Summer. The overall geometry, pricing, and customer feedback of Mondince takes me back to the peak Chinertown years during the pandemic.

Yes I love the natural progression and increased exposure of Far East brands over the years. Of course that comes with price bumps. But I'll always have a tiny place in my heart for those $700-$1000 prices frames that have a history of being well made.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on May 21, 2026, 10:35:43 AM
So I had buddy who runs his own private OEM brand through Mondince put me in contact with them earlier this week. Truthfully I never really heard of Mondince until this forum. And nothing but high remarks from my friend. This was his idea that I connect with them.

Anyway, I'm working on getting a frameset for long term review. My suspicion though is the frame probably won't deliver until mid to late Summer. The overall geometry, pricing, and customer feedback of Mondince takes me back to the peak Chinertown years during the pandemic.

Yes I love the natural progression and increased exposure of Far East brands over the years. Of course that comes with price bumps. But I'll always have a tiny place in my heart for those $700-$1000 prices frames that have a history of being well made.

We know they overlap heavily with Long Teng. We know Long Teng OEMs for the likes of Cube, Argon 18, and more. So your friend's company is probably a mini Cube, aka yet another "brand" / western client that buys frames from OEMs. Afaik, nuance comes in with open / closed moulds, prototyping vs off the shelf layups and so on.
Mondince is a marketing / salesforce forward entity, with Long Teng being the factory. Maybe if you're Cube, you deal with Long Teng, and if you're small, you deal with Mondince.

Also, if you ask Alisa nicely, you can get that frame straight from Long Teng, which tells me it's highly likely to be the new open mould aero 2026 iteration, probably the successor to my own 268 that shows its age now.

Bromaxxing over.

Looking fwd to your review.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 21, 2026, 10:35:59 AM
I also wrote to Jack. They’re making a new cone using the CMC machine and will then send it by mail. I think from now on they’ll be shipping the upgraded cone version. I’m curious to see if the FSA cone works. But I needed the upper part for the transition to the handlebars anyway.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 21, 2026, 10:45:02 AM
So I had buddy who runs his own private OEM brand through Mondince put me in contact with them earlier this week. Truthfully I never really heard of Mondince until this forum. And nothing but high remarks from my friend. This was his idea that I connect with them.

Anyway, I'm working on getting a frameset for long term review. My suspicion though is the frame probably won't deliver until mid to late Summer. The overall geometry, pricing, and customer feedback of Mondince takes me back to the peak Chinertown years during the pandemic.

Yes I love the natural progression and increased exposure of Far East brands over the years. Of course that comes with price bumps. But I'll always have a tiny place in my heart for those $700-$1000 prices frames that have a history of being well made.

Are you talking about getting an FM126 for review or a new / different aero frame from mondice?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Ludo on May 21, 2026, 06:38:53 PM
We know they overlap heavily with Long Teng. We know Long Teng OEMs for the likes of Cube, Argon 18, and more. So your friend's company is probably a mini Cube, aka yet another "brand" / western client that buys frames from OEMs. Afaik, nuance comes in with open / closed moulds, prototyping vs off the shelf layups and so on.
Mondince is a marketing / salesforce forward entity, with Long Teng being the factory. Maybe if you're Cube, you deal with Long Teng, and if you're small, you deal with Mondince.

Also, if you ask Alisa nicely, you can get that frame straight from Long Teng, which tells me it's highly likely to be the new open mould aero 2026 iteration, probably the successor to my own 268 that shows its age now.

Bromaxxing over.

Looking fwd to your review.
I call BS on that Serge! I have never seen you being anything but a mean grinchy French guy lol
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 22, 2026, 07:03:24 AM
Problem of crown race is solved by Mondince (attached pictures).
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Ludo on May 22, 2026, 09:13:14 PM
Guys, I am seriously considering that frame. I do 80% road and 20% compacted gravel road. Do you think that bike on 32C can handle that? Thinking of pairing with 50-55mm wheels with titaniiun spoked to get some compliance?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Dark17 on May 23, 2026, 01:48:07 AM
Guys, I am seriously considering that frame. I do 80% road and 20% compacted gravel road. Do you think that bike on 32C can handle that? Thinking of pairing with 50-55mm wheels with titaniiun spoked to get some compliance?

32c can do that. I usually do light trails on my 32c gp5k
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 23, 2026, 05:55:25 AM
With FSA Headset:
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 23, 2026, 06:01:13 AM
With FSA Headset:
That looks a lot better / actually right. Seems like only the crown race was shit which is good to know😅. Does anyone have something to say regarding ride feel etc.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on May 23, 2026, 01:42:22 PM
Guys, I am seriously considering that frame. I do 80% road and 20% compacted gravel road. Do you think that bike on 32C can handle that? Thinking of pairing with 50-55mm wheels with titaniiun spoked to get some compliance?

20pc gravel is a lot of gravel. You'd be almost certainly better served by the light carbon 18D.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Ludo on May 23, 2026, 02:08:44 PM
That’s what I think but I like the go fast look of mondince! The gravel part is really nicely compared, I currently run on 40C on it and maintain an easy 28-30km/h
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on May 24, 2026, 10:09:20 AM
That’s what I think but I like the go fast look of mondince! The gravel part is really nicely compared, I currently run on 40C on it and maintain an easy 28-30km/h

you do you :)
I would not ride any type of gravel on 32C when you can get 35C that rolls just as fast, and a frame that can clear 38C and still go fast.
Canning isnt shoulding.
That said, you CAN ride light gravel on 32C tyres. It sucks, but you can. You can also still ride 25C on the road :D

Title: Re: Long Teng / Mondince aero frame FM126
Post by: Ludo on May 24, 2026, 12:42:56 PM
I am 100% in agreement with you, but I like the idea of an aero looking bike and ideally I wanted that 35c clearance
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Dark17 on May 25, 2026, 12:22:07 PM
PSA (kinda). You can also buy this frame on Longteng. Just e-mail Alisa and tell her you want to buy RD302
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 25, 2026, 12:22:32 PM
Review :

​💬 Communication & Customer Service

​An absolute flawless experience with Mondince. Perfect communication via WhatsApp: super available, highly responsive, and answers every single question. A real pleasure!

​📦 Lead Times & Shipping
​Production: Since this is a brand-new frame, there was no stock yet (which I knew beforehand). There was a slight delay with the paint job, but completely normal for this level of finish.

​Shipping: Shipped via DPD, took 1 month to arrive in France. Just to be clear, the delay was caused by DPD once the package reached Europe—Mondince is not to blame here! The package arrived in great condition, and all components were extremely well packed.

​🎨 Frame Finish & Carbon Inspection
​Aesthetics: The glossy white paint is absolutely perfect. The bottom bracket and brake caliper mounts are well-faced (just a minor residue of clear resin on the BB, easily cleaned).

​Inside the frame: Of course, I checked it with an endoscopic camera! The carbon lay-up is super clean and smooth. There are just a few minor "carbon flakes" around the bottle cage inserts, but they should be completely inconsequential.

​🔧 Build Details
​Everything went perfectly smooth thanks to the excellent quality of the parts. However, here are 3 quick points to watch out for if you're building one:
1️⃣ Di2 Battery Mount: The one provided wasn't the right size. Fortunately, the seatpost is narrow enough that the battery fits snugly inside without a mount for the short term. Please note that the seatpost is 350 mm length for the size 54. Mondince is already sending over a replacement mount.
2️⃣ Crown Race: First crown race did not fit correctly. Since now, the problem is solved. Mondince has developped a new one. All new orders will have the new one.
3️⃣ Bearings: Take note of the sizes—the upper bearing is 8 cm in height, and the lower bearing is 7 cm.

​⚖️ Scale Verification
​For this SL version in size 54 (with the white paint, which is the heaviest finish option):
​Frame only (including thru-axles, derailleur hanger, screws...): 1172 g
​Fork (uncut): 549 g

​(I have not checked the tire clearance).

​🔥 Initial Verdict
​Based purely on the build and mechanical quality: I highly recommend Mondince.
 Honestly, if you want an excellent quality aero bike at a competitive price, go for it.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 25, 2026, 12:25:51 PM
Pictures.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 26, 2026, 01:53:37 AM
What torque setting did you use for the seatpost clamp?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 26, 2026, 01:55:45 AM
How is the ride feel and did anyone order the ultralight instead of the superlight?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 26, 2026, 02:12:20 AM
What torque setting did you use for the seatpost clamp?

Max 6 N.m. I set 5 N.m with carbon paste, no slipping.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Rolle2k on May 26, 2026, 12:52:17 PM
How is the ride feel and did anyone order the ultralight instead of the superlight?

I did, size 54 - but they failed and missed that my frame was supposed to be Metallic paint, so im waiting for re-painting. Told them they need to remove old paint, otherwise there was no use to order ultralight 😊
Hopefully finished during this week or next.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: kungie on May 26, 2026, 01:26:14 PM
I ordered the ultralight, had it painted two colors glossy. Wasn't going for a minimal weight, just figured I'd order the lightest frame offered and not worry about it beyond that. Frame weight in size 58cm with front and rear derailleur hangers, but no thru axles, is 1054g. Happy so far and it looks good; consistent on the carbon layup looking clean minus the bottle cage bolts which doesn't bother me. Want to get a shop to cut the fork down before I do the rest of the build and was too busy bikepacking last weekend to sort this out. Honestly, I'm partially killing time until I get the new crown race sent to me.

While I got the ultralight, that's kind of where the ultralight ends. Did a budget approach for the groupset. Super excited to get it together in the next week or two.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 28, 2026, 05:52:54 AM
Did anyone build up the bike in the carbon black and has some photos?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: pscrs on May 28, 2026, 08:26:46 AM
Did anyone build up the bike in the carbon black and has some photos?
I have a UL variant in raw carbon that should be due soon, will post it as soon as its in my hands
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on May 30, 2026, 01:46:53 PM
Here we go... 95% ready.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on May 30, 2026, 10:13:11 PM
Here we go... 95% ready.
Looks really good. Will be interested to heart how it rides. Also.what handlebars are those?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Vasegaard on May 31, 2026, 08:58:00 AM
Here we go... 95% ready.
Not gonna lie. Looks good
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Tpower59 on May 31, 2026, 09:17:36 AM
Here we go... 95% ready.

Please tell us final weight when you finish it bro
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Rolle2k on May 31, 2026, 12:40:10 PM
Here we go... 95% ready.

What frame size is that, and what depth of wheels, 65mm? tire width?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on May 31, 2026, 12:54:36 PM
600 km on the bike. I love it !
Title: Re: Long Teng / Mondince aero frame FM126
Post by: panel on May 31, 2026, 02:25:57 PM
bigApple , can you tell us any info on those wheels ? They look fantastic !!
Title: Re: Long Teng / Mondince aero frame FM126
Post by: kungie on May 31, 2026, 09:22:55 PM
I'm putting mine together still; it's the first time I've done di2/ltwoo battery in a frame. If anyone has done the same, how does the battery attach to the seatpost? I was planning for it to fit inside the seatpost, but it doesn't.

Edit- saw the previous comment, thanks. I was a little too stressed to force it but I'll give it a try later.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Lotnik on June 01, 2026, 12:47:14 AM
I'm putting mine together still; it's the first time I've done di2/ltwoo battery in a frame. If anyone has done the same, how does the battery attach to the seatpost? I was planning for it to fit inside the seatpost, but it doesn't.
On the previous post there is an answer for you ;)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 03, 2026, 03:27:10 AM
Here we go... 95% ready.

Some details
Weight exactly 7,5kg ready to ride
- XMCS Handlebar
- Rival XPLR with force aero crankset and  force cassette
-YBN flat top chain
- XMCS wheels 78/65mm
- GP5000 30mm (32mm on that rims)
- Dura Ace Pedals
- Selle Italia SLR saddle
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Icyseanfitz on June 03, 2026, 05:21:27 PM
How much did ye pay for the ultralight guys? Has anyone ridden it properly yet? Any opinions on ride characteristics?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 04, 2026, 11:10:49 AM
Something I noticed very quickly while assembling the bike is that it has quite a bit of flex around the bottom bracket. I think the horizontal stiffness is limited because of the narrow down tube. I have to admit that I also notice this when sprinting >1000W on the road, and I don’t particularly like it. When riding normally in the saddle or out of the saddle, I can’t really feel it. You can already see it if you tilt the bike slightly to the side and then put some load  to the pedal, you can see how the frame flexes. Significantly more flex compared to my other bikes. In the future, I’d probably make sure the tube shapes are designed for high stiffness.

Edit: I have the Superlight… I wouldn't go for the Ultralight, as that would only make the stiffness issue worse.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on June 04, 2026, 11:32:24 AM
Something I noticed very quickly while assembling the bike is that it has quite a bit of flex around the bottom bracket. I think the horizontal stiffness is limited because of the narrow down tube. I have to admit that I also notice this when sprinting >1000W on the road, and I don’t particularly like it. When riding normally in the saddle or out of the saddle, I can’t really feel it. You can already see it if you tilt the bike slightly to the side and then put some load  to the pedal, you can see how the frame flexes. Significantly more flex compared to my other bikes. In the future, I’d probably make sure the tube shapes are designed for high stiffness.

Edit: I have the Superlight… I wouldn't go for the Ultralight, as that would only make the stiffness issue worse.

I don't have this issue. Are you sure that the flex does not come from your wheels ?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 04, 2026, 11:51:44 AM
I don't have this issue. Are you sure that the flex does not come from your wheels ?

Wheels are very stiff. I try to make a video tomorrow in comparison to a LCR018.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 04, 2026, 12:32:03 PM
LCR018
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 04, 2026, 12:32:37 PM
FM126
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on June 04, 2026, 01:01:32 PM
FM126

Could you install the same wheelset please for both frame ? (May be it is already done 😅)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 04, 2026, 01:14:48 PM
Not yet, but this is not going to change things.
It's simple physics: a narrower down tube can absorb less horizontal force. A larger-diameter tube simply offers better resistance to bending. 
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on June 04, 2026, 01:31:12 PM
Not yet, but this is not going to change things.
It's simple physics: a narrower down tube can absorb less horizontal force. A larger-diameter tube simply offers better resistance to bending.

Only if the lay-up is the same. Shape angle also has some impact on strength.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on June 04, 2026, 01:33:28 PM
Can you guys give some info about how heavy you are? I am still waiting for a friend of mine to design some custom.logos and wanted to order the frame with them. I am around 85kg and 186cm tall.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on June 05, 2026, 08:11:21 AM
Only if the lay-up is the same. Shape angle also has some impact on strength.
Could you make a similar video with your frame to see if there is a similar issue?

And to the videos: Maybe there is such an "extreme" difference between the lightcarbon and the mondice as the tires are different. The gravel tires on the lightcarbon are probably softer than the road tires on the mondice and could mask the frame flex by deforming more than the road tires (just an idea).
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 05, 2026, 09:03:44 AM
Guys... i tested against a fake SL8 from yoho, a steel titici gravel and the lightcarbon. The FM126 is the most flexing... absolutely sure. No wheel or tire is going to change that. You could feel and see it.
This is not going to make you slower, but it could feel weird, for example during a sprint. I would be surprised, if its only my frame, because then i would have a frame with totally different layup, why should that be the reason.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Shayzzz on June 05, 2026, 10:13:00 AM
Hey, do you talk about the LCR018? Between all the frame you’ve cited, could you tell us which one is the most flexible to which one is the less flexible please 🙏 ?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 05, 2026, 11:32:24 AM
Hey, do you talk about the LCR018? Between all the frame you’ve cited, could you tell us which one is the most flexible to which one is the less flexible please 🙏 ?
If I compare only the carbon frames, the LCR018 is the stiffest, followed by the fake SL8, and the fm126 is the least stiff.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Dark17 on June 05, 2026, 12:09:11 PM
So I might be waiting for LCR020 instead of this frame eh.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Sakizashi on June 05, 2026, 12:13:00 PM
Hey, just chipping in some thoughts as someone who has dealt with laterally flexy bikes, including one that more or less started to fail in that area--after an absurd number of miles.

I never felt that anything was off when sprinting in terms of flex. Partly because everything moves so much when sprinting, particularly out of the saddle, and partly because it's hard to pay attention to anything other than the road, the riders, and my own lack of fitness when going all out for <20 seconds.

Two places where I noticed things. First, with 2x, I started dropping chains more often, particularly when starting from stops and when climbing out of the saddle (i.e., lower-cadence, higher-torque situations), and the electronic shifting of the FD became less consistent. Second, descending became less predictable. I thought it was the wheels flexing at first, but eventually figured out that the growing softness in the BB was the primary problem. I don't know if this is helpful to folks as they try to figure out how much flex is too much flex between bikes, but I hope it is.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on June 05, 2026, 01:58:35 PM
So I might be waiting for LCR020 instead of this frame eh.
Same for me propably.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on June 05, 2026, 02:14:21 PM
FM126

i'm curious now, can you please explain how you do that test? i just tried on mine and i'm getting no deflection because i find the position super awkward and can't really apply force: i'm sure you have a technique, and i'd like to try on my own bike. my tube shapes are very aero, so it might be expect to not be laterally very stiff, so curious to try.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: tisun on June 06, 2026, 12:15:13 AM
FM126

Holyshit, that's a lot of flex
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 06, 2026, 01:38:02 AM
i'm curious now, can you please explain how you do that test? i just tried on mine and i'm getting no deflection because i find the position super awkward and can't really apply force: i'm sure you have a technique, and i'd like to try on my own bike. my tube shapes are very aero, so it might be expect to not be laterally very stiff, so curious to try.

Lean the bike against the wall so that the rear wheel and the handlebars are supported. Then you can apply force to the bottom bracket. In my case, the rear wheel was supported by a doorframe that was close to the wall, and the handlebars were against the wall.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 06, 2026, 01:41:21 AM
Holyshit, that's a lot of flex

I think they designed the frame on paper. The proper process would be to manufacture it, test it, make adjustments, and repeat until the product is fully developed. I think in this case, they designed it on paper, manufactured it, and then sold it straight away to the customer. I’ve learned never to be the first to buy again 😅
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on June 06, 2026, 01:44:22 AM
I think they designed the frame on paper. The proper process would be to manufacture it, test it, make adjustments, and repeat until the product is fully developed. I think in this case, they designed it on paper, manufactured it, and then sold it straight away to the customer. I’ve learned never to be the first to buy again 😅
I am not 100% sure about that, as the frame is produced by long teng which is a reputable manufacturer it would surprise me a bit. Still the flex you are experiencing is weird. Have you send mondice the video regarding clarification? Maybe it is actually an issue with your frame as the other buyers in this forum have yet to report something similar.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Lukas_W on June 06, 2026, 04:07:12 AM
Hi, I’ve ordered the FM126 as well. It’s the first bike I’m building myself, and I could use some help with the headset. It came with four bearings, a compression ring, and a ring for cable routing. Can anyone tell me the correct order for installing these parts? I assumed I’d install one bearing at the bottom and one at the top, then place the compression ring on the top bearing, followed by the cable routing ring. However, that leaves a large gap at the top. It looks flush without the compression ring, but simply leaving a part out seems wrong to me.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Lukas_W on June 06, 2026, 04:31:03 AM
Okay, from what I gather, the compression ring here is actually a crown race. Can anyone tell me if I’ve installed it the right way round and whether it’s the new version or the old one?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: patliean1 on June 06, 2026, 09:12:24 AM
I wonder if all of this is similar to the viral "squeeze-gate" of the Tarmac SL7 downtube. Meaning yeah you can squeeze it. But that isn't an area or angle where torque/load (?) is distributed. Yeah I'm definitely not an engineer.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Ludo on June 06, 2026, 10:11:10 AM
The test seems to be relevant because you’re definitely applying similar forces when pedaling, is it relevant to safety or performance?!!
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on June 06, 2026, 01:58:29 PM
Okay, from what I gather, the compression ring here is actually a crown race. Can anyone tell me if I’ve installed it the right way round and whether it’s the new version or the old one?

It needs to flush the fork (it will do it when you preload with the top cap stem).


7 mm height bearing for lower.
8 mm height bearing for upper.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on June 08, 2026, 04:25:35 AM
The test seems to be relevant because you’re definitely applying similar forces when pedaling, is it relevant to safety or performance?!!
Where you able to replicate the test with your own bike?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on June 08, 2026, 09:18:15 AM
Lean the bike against the wall so that the rear wheel and the handlebars are supported. Then you can apply force to the bottom bracket. In my case, the rear wheel was supported by a doorframe that was close to the wall, and the handlebars were against the wall.

thanks, i tried to do the same, wheel (nor rear triangle) on door frame, bars on another door frame. I get lateral movement, but some of it is the tyres that are half deflated (it seems). What i do not get, is the gap between the seat stays and the rim almost disappearing. Is it a wheel thing, or a frame thing? Would you mind using the same wheels for the test? I feel like most of the play could actually be the wheel rather than the frame.
I guess ideally we'd apply pressure at the rear at the thru axle, not on the wheel. There was no easy way for me to apply pressure on the frame rather than the wheel.
Interesting shenanigans...
Title: Re: Long Teng / Mondince aero frame FM126
Post by: glitch on June 09, 2026, 04:02:36 AM
Any riding feedback yet?

And what was the frame weight on your builds?

Considering this frame to replace a 2019 SystemSix which - love the SystemSix but would like lower weight, 32 mm clearance and somewhat more compliance, therefore considering the UL version :)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 09, 2026, 06:58:07 AM
thanks, i tried to do the same, wheel (nor rear triangle) on door frame, bars on another door frame. I get lateral movement, but some of it is the tyres that are half deflated (it seems). What i do not get, is the gap between the seat stays and the rim almost disappearing. Is it a wheel thing, or a frame thing? Would you mind using the same wheels for the test? I feel like most of the play could actually be the wheel rather than the frame.
I guess ideally we'd apply pressure at the rear at the thru axle, not on the wheel. There was no easy way for me to apply pressure on the frame rather than the wheel.
Interesting shenanigans...

All right, then let’s get back to our highly scientific work. This time, I didn’t lean the rear wheel against the wall or the doorframe, but rather the frame’s axle itself. That means the rear wheel is essentially removed from the equation. Then I asked the Gemini AI how much the bottom bracket deforms relative to the ground. The result is that the bottom bracket of the FM126 shifts about twice as much in the horizontal direction.

Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 09, 2026, 07:15:44 AM
Any riding feedback yet?

And what was the frame weight on your builds?

Considering this frame to replace a 2019 SystemSix which - love the SystemSix but would like lower weight, 32 mm clearance and somewhat more compliance, therefore considering the UL version :)

Don't get me wrong. You can ride the bike, but because the bottom bracket area lacks stiffness, the frame just isn't responsive enough. I wouldn't race crits on it, for example. I am not a world tour sprinter, but my Sprint with 1000w+ does not feel good on this bike. At least I haven't noticed any disc rubbing so far. Since I ride 1x, I can't tell if it might be rubbing at the front derailleur.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Lukas_W on June 09, 2026, 12:18:43 PM
It needs to flush the fork (it will do it when you preload with the top cap stem).


7 mm height bearing for lower.
8 mm height bearing for upper.


When I turn the bolt on the stem cap, it just tightens the headset, right? The gap between the frame and the fork seems to stay the same, though. I’ve also been in touch with Jack again in the meantime, and he told me I should use a 6.5mm bearing at the bottom, which he’s sending me along with the new fork crown race.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Lukas_W on June 09, 2026, 12:20:27 PM
I hope that helps. The current gap is still quite large.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on June 09, 2026, 01:12:47 PM
I hope that helps. The current gap is still quite large.

It seems that you have installed the crown race in the wrong side. Flip it.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Lukas_W on June 10, 2026, 12:10:22 AM
Thanks for the info. Jack also wrote to me saying I installed the cone incorrectly. However, the gap is almost just as big the other way around. I hope things improve with the new parts.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on June 10, 2026, 12:12:17 AM
Thanks for the info. Jack also wrote to me saying I installed the cone incorrectly. However, the gap is almost just as big the other way around. I hope things improve with the new parts.
Then you probably still got the old cone race, the new one from mondice or as someone described an original fsa cone racer will do the trick.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on June 10, 2026, 03:24:55 AM
All right, then let’s get back to our highly scientific work. This time, I didn’t lean the rear wheel against the wall or the doorframe, but rather the frame’s axle itself. That means the rear wheel is essentially removed from the equation. Then I asked the Gemini AI how much the bottom bracket deforms relative to the ground. The result is that the bottom bracket of the FM126 shifts about twice as much in the horizontal direction.

Thank you! You've largely isolated the frame, as far as i can tell (to be fair, i still feel the wheels/tyres should be the same because i feel the rubber moving could be contributing maybe?), and so, it doesn't look good that a brand new aero race frame with fancy fibers (that's not even the lightest version) would be significantly softer than the 18D that you'd expect to be not as rigid as an aero race frame.
Do you plan to reach out to Jack?
The fact that you can feel that the frame is soft sprinting isn't great news at all. Trace Velo on his video of the 18D said the 18D doesnt feel like a "legit" road race bike, so I doubt many people will happily buy an aero frame that's noticeably softer.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 10, 2026, 03:56:31 AM
Thank you! You've largely isolated the frame, as far as i can tell (to be fair, i still feel the wheels/tyres should be the same because i feel the rubber moving could be contributing maybe?), and so, it doesn't look good that a brand new aero race frame with fancy fibers (that's not even the lightest version) would be significantly softer than the 18D that you'd expect to be not as rigid as an aero race frame.
Do you plan to reach out to Jack?
The fact that you can feel that the frame is soft sprinting isn't great news at all. Trace Velo on his video of the 18D said the 18D doesnt feel like a "legit" road race bike, so I doubt many people will happily buy an aero frame that's noticeably softer.

I did. Right now he Just answered: "We test it. I will tell the production line"
I will ask again in a few days.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Tpower59 on June 10, 2026, 04:24:14 AM
Thank you! You've largely isolated the frame, as far as i can tell (to be fair, i still feel the wheels/tyres should be the same because i feel the rubber moving could be contributing maybe?), and so, it doesn't look good that a brand new aero race frame with fancy fibers (that's not even the lightest version) would be significantly softer than the 18D that you'd expect to be not as rigid as an aero race frame.
Do you plan to reach out to Jack?
The fact that you can feel that the frame is soft sprinting isn't great news at all. Trace Velo on his video of the 18D said the 18D doesnt feel like a "legit" road race bike, so I doubt many people will happily buy an aero frame that's noticeably softer.

We like them stiff 8)
 https://youtu.be/k5j9YmuCduw?is=EljEfSNfGxeE2lzC (https://youtu.be/k5j9YmuCduw?is=EljEfSNfGxeE2lzC)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on June 10, 2026, 04:32:30 AM
Thank you! You've largely isolated the frame, as far as i can tell (to be fair, i still feel the wheels/tyres should be the same because i feel the rubber moving could be contributing maybe?), and so, it doesn't look good that a brand new aero race frame with fancy fibers (that's not even the lightest version) would be significantly softer than the 18D that you'd expect to be not as rigid as an aero race frame.
Do you plan to reach out to Jack?
The fact that you can feel that the frame is soft sprinting isn't great news at all. Trace Velo on his video of the 18D said the 18D doesnt feel like a "legit" road race bike, so I doubt many people will happily buy an aero frame that's noticeably softer.

If it was only the videos I would agree that maybe the softer gravel tires absorb some of the movement but if it is also feelable when riding that sounds shifty. Maybe they will change something in the layup but we will have to see.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on June 11, 2026, 11:30:48 AM
Final answer:
It is safe
No worry
We have done the ISO standard test

Everyone can draw their own conclusions.
I'm looking for a new frame that fits my 80 kg. Anyone interested in the FM126? I'll give you a good price 😁

Funny thing is there advertising:
Why Choose the FM126 Premium Aero Carbon Frameset?
[...] high performance aero frame delivers race-winning stiffness. [...]
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on June 11, 2026, 12:09:03 PM
Final answer:
It is safe
No worry
We have done the ISO standard test

Everyone can draw their own conclusions.
I'm looking for a new frame that fits my 80 kg. Anyone interested in the FM126? I'll give you a good price 😁

Funny thing is there advertising:
Why Choose the FM126 Premium Aero Carbon Frameset?
[...] high performance aero frame delivers race-winning stiffness. [...]

You could have a look at a thread for a new aero roadbike by yishun. Looks similar to an aeroad and from earlier revies the bikes are very robust. It is not confirmed if they do b2c yet.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on June 11, 2026, 12:18:05 PM
You could have a look at a thread for a new aero roadbike by yishun. Looks similar to an aeroad and from earlier revies the bikes are very robust. It is not confirmed if they do b2c yet.

They don't. As a consequence, the topic as been closed.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: vtlyz on June 12, 2026, 02:43:18 PM
Reached out to Jack for inquiries about having a size 49 made but they don't have any molds for that. Unfortunate as I was debating between this and the SC-R55D...
Title: Re: Long Teng / Mondince aero frame FM126
Post by: gribs on June 12, 2026, 05:17:21 PM
They don't. As a consequence, the topic as been closed.

It would have been helpful to keep the thread alive but with a note they weren't selling direct to consumer.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Lukas_W on June 18, 2026, 04:41:51 PM
Hi, I could use your help again. The new headset and crown race arrived today. There were also two plastic parts in the package whose purpose I don't understand. Can anyone tell me what they are for and where I should install them?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: fat-tony on June 18, 2026, 06:20:56 PM
Hi, I could use your help again. The new headset and crown race arrived today. There were also two plastic parts in the package whose purpose I don't understand. Can anyone tell me what they are for and where I should install them?

Its the battery holder
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Rolle2k on July 01, 2026, 06:38:08 AM
Top headset bearing is 8mm 52/40 - but is it 36/45 deg or 45/45 deg?
Is the headset compression ring included good, or is there any reason to swap for a FSA in aluminum?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on July 02, 2026, 02:03:08 AM
If I remember correctly, the original Mondince headset bearings were 45/45 on the top and bottom. It should actually be written on the bearing.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: kungie on July 02, 2026, 10:41:55 AM
Ok I haven't ridden it much, but I've finally stopped spilling mineral oil everywhere and have it assembled.
58cm and whatever they call the lighter weight option, which is irrelevant as I painted it.

Good first impressions once the correct pieces have actually been delivered. In hindsight, I can't be upset for the delay, it was my choice to be the trial subject for a new frame. Wrong battery holder, wrong bearings, and wrong crown race made me realize how different of an experience buying a frame direct from a factory is. I'm a little surprised that the person manufacturing the frame didn't want to assemble one and take it for a spin, honestly. I still stand by my decision to buy a frame without reviews, as I bought this knowing that the frame would kind of be a gamble. I didn't go for a expensive or ultralight build as a result. I got everything together for just under $2000, buying parts over time since last November. 8.4kg as pictured (cage and computer mounts, pedals).

I did my own version of the stiffness on the wall test, which seems consistent with what's been described. I'm more of an endurance/long distance rider, so I might not actually be able to hit the watts on the road to notice, but I'll update when I've done a sprint workout. My specialized diverge (fact 9r carbon) flexed quite a bit more using the same test, but that bike is known to be quite soft and since there is so much more clearance, I am more worried about the fm126.

I had my LBS cut the fork before I got the correct crown race and lower bearing, which means the fork is just a bit too long. I'll probably have to find a spacer, but if anyone has a link to a slightly lifted top tap on Aliexpress, I'd appreciate the link!   :D

Title: Re: Long Teng / Mondince aero frame FM126
Post by: Tpower59 on July 02, 2026, 12:20:48 PM
Ok I haven't ridden it much, but I've finally stopped spilling mineral oil everywhere and have it assembled.
58cm and whatever they call the lighter weight option, which is irrelevant as I painted it.

Good first impressions once the correct pieces have actually been delivered. In hindsight, I can't be upset for the delay, it was my choice to be the trial subject for a new frame. Wrong battery holder, wrong bearings, and wrong crown race made me realize how different of an experience buying a frame direct from a factory is. I'm a little surprised that the person manufacturing the frame didn't want to assemble one and take it for a spin, honestly. I still stand by my decision to buy a frame without reviews, as I bought this knowing that the frame would kind of be a gamble. I didn't go for a expensive or ultralight build as a result. I got everything together for just under $2000, buying parts over time since last November. 8.4kg as pictured (cage and computer mounts, pedals).

I did my own version of the stiffness on the wall test, which seems consistent with what's been described. I'm more of an endurance/long distance rider, so I might not actually be able to hit the watts on the road to notice, but I'll update when I've done a sprint workout. My specialized diverge (fact 9r carbon) flexed quite a bit more using the same test, but that bike is known to be quite soft and since there is so much more clearance, I am more worried about the fm126.

I had my LBS cut the fork before I got the correct crown race and lower bearing, which means the fork is just a bit too long. I'll probably have to find a spacer, but if anyone has a link to a slightly lifted top tap on Aliexpress, I'd appreciate the link!   :D

Nice Decathlon Van China
You forgot to tell us your riding impressions
Title: Re: Long Teng / Mondince aero frame FM126
Post by: ausmtb8989 on July 04, 2026, 02:08:40 AM
All right, then let’s get back to our highly scientific work. This time, I didn’t lean the rear wheel against the wall or the doorframe, but rather the frame’s axle itself. That means the rear wheel is essentially removed from the equation. Then I asked the Gemini AI how much the bottom bracket deforms relative to the ground. The result is that the bottom bracket of the FM126 shifts about twice as much in the horizontal direction.
As I am in the market for a Chiner frame build, I was interested in this frame till this video i shown.  It really appears to be a noodle frame.  I tried this same test with my old 2013 Giant TCR Advanced SL, and get at most 1mm deflection between wheel and seat stay, and this is using the force of my knees to try to get movement.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on July 06, 2026, 06:23:52 AM
Just an interesting site note: While i was checking the china bikes facebook forum i noticed that someone posted the fm126 frame under a different brand. The brand light-cycling also sells the mondice frames from their website but looks like they are more focused on the b2c and mondice more b2b.

https://light-cycling.com/?v=5f02f0889301
Title: Re: Long Teng / Mondince aero frame FM126
Post by: kungie on July 07, 2026, 08:06:54 AM
Nice Decathlon Van China
You forgot to tell us your riding impressions

Not sure if I should be proud or embarrassed :)

Bike is good, but again, with the asterisk for flex on chainstays. I have ridden it a few times. No surprises on comfort given the SL8 geometry. I rode it 150km yesterday and the positioning and comfort was great. I really like it and am happy. I knew this frame would be a gamble, so I think it is fitting squarely into my expectations. I still want to try some more out of the saddle efforts, but I suspect the real test will be feedback after getting into some quicker group rides (which I haven't been doing lately).

I'm a bit hesitant to my authoritative statements on the frame, as I don't have a lot of experience with carbon road framesets. It feels less stable/premium than a trek madone sl8. Hard efforts feel a little unstable, but it could certainly be me adjusting to a racier road bike. Wish I could provide more, but that's probably all I can say until I get more chances to go fast on it.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on July 07, 2026, 09:55:20 AM
Not sure if I should be proud or embarrassed :)

Bike is good, but again, with the asterisk for flex on chainstays. I have ridden it a few times. No surprises on comfort given the SL8 geometry. I rode it 150km yesterday and the positioning and comfort was great. I really like it and am happy. I knew this frame would be a gamble, so I think it is fitting squarely into my expectations. I still want to try some more out of the saddle efforts, but I suspect the real test will be feedback after getting into some quicker group rides (which I haven't been doing lately).

I'm a bit hesitant to my authoritative statements on the frame, as I don't have a lot of experience with carbon road framesets. It feels less stable/premium than a trek madone sl8. Hard efforts feel a little unstable, but it could certainly be me adjusting to a racier road bike. Wish I could provide more, but that's probably all I can say until I get more chances to go fast on it.

Take your time and dont feel pressured to come up with some review before you've actually had time to review the frame properly.
I would ruthlessly tell Jack that his frame is a noodle and that's completely unacceptable, if you feel it's soft indeed. He dismissed the guy who first did the chainstay flex test here, saying it's normal. That's typical Chinese behavior of not admitting mistakes. But if several people say the same thing, hopefully they'll get their act together.
I stopped interacting with Jack because i lost all interest the moment the frame stopped being 35C compatible (he effectively kind of lied, as far as i can tell), so i have no horse in this race left. Otherwise i'd be on his back.
Almost nobody's going to buy an aero looking frame if it's proven to be flexy AF. If Jack can't understand that then he shouldnt be in this business. ISO tests are a joke, every frame passes ISO, it means almost nothing.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on July 13, 2026, 06:09:53 AM
I was just told by the light cycling contact that they have a new layup with a 130N/mm BB stiffness. Sounds a bit like bullshit to me :D


For comparission this table with different bikes from the nero show (althought the tourmagazine is using a different test as far as i know):
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on July 13, 2026, 09:31:39 AM
If this is real, i am really pissed. But i actually can not imagine they improved the bb stiffness that much.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Dareios on July 13, 2026, 10:19:08 AM
If this is real, i am really pissed. But i actually can not imagine they improved the bb stiffness that much.
Also, who needs that much BB stiffness?
I'm pretty sure that would be well above the point of diminishing returns.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on July 13, 2026, 10:54:16 AM
I was just told by the light cycling contact that they have a new layup with a 130N/mm BB stiffness. Sounds a bit like bullshit to me :D


For comparission this table with different bikes from the nero show (althought the tourmagazine is using a different test as far as i know):

Who is "the light cycling contact"? Is that someone at Mondince?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on July 13, 2026, 02:18:54 PM
Also, who needs that much BB stiffness?
I'm pretty sure that would be well above the point of diminishing returns.

I think there are two different approaches to measure the stiffness. The one from tour magazine which are the numbers in the screenshot and a more conventional/basic way where 130N/mm is sort of a benchmark so maybe they are just claiming some number that is used as a benchmark.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on July 13, 2026, 02:20:37 PM
Who is "the light cycling contact"? Is that someone at Mondince?

No I just wrote to a WhatsApp number that is mentioned on the light-cycling website. I also asked what the difference is between the companies and as suspected Mondice = B2B and Light Cycling = B2C.They also changed the model names on their website in the last few days so they are not the same names as mondice anymore.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on July 14, 2026, 09:11:31 AM
No I just wrote to a WhatsApp number that is mentioned on the light-cycling website. I also asked what the difference is between the companies and as suspected Mondice = B2B and Light Cycling = B2C.They also changed the model names on their website in the last few days so they are not the same names as mondice anymore.

Be very careful. Never heard of them. Where did you find them? The website is not serious, and the company (empty shell, really) is 1y old only. Wont call it a scam, but i think i can vibe code the same shit in one afternoon and i m pretty sure registering a HK company costs a few hundred bucks and is dead easy.
https://www.ltddir.com/companies/light-cycling-sports-equipment-co-limited/
They are like velobuild, in that they're clearly a broker. But velobuild has built a reputation after trading for years and years.
If you're going to buy the 126, you're better off buying from the factory (long teng, Alisa will sell it to you if you ask) or Mondince (long teng related party) than from these people. Without hard evidence, i also wouldnt believe they changed the layup, as Mondince brushed off the topic as a non issue. If it's another factory using the moulds, then idk if they share the layup schedule (it is an open mould frame).
Honestly i'd stay away. Unless and until Jack shows that the frame is sprint friendly, i dont think it makes sense to buy that frame. And apparently, he doesnt seem to care.
I also note that some users (like BeR) have reported not noticing anything wrong with the frame flexing at the BB, but why take the risk? My 268 doesnt have nearly the same flex (i repeated the door test) and i can't see any scenario where it would make sense to take such a risk. To be clear, sprinting is one thing, but if you're bombing down a descent at 70+kmh, and you're doing hairpins, the idea of a pool noodle is straight up terrifying (you want something that tracks, not fuzzy lines). If your FTP is low, you dont sprint, you dont race, you ride on the flat, then you're fine, but it's still not a good reason to buy something that's potentially truly impaired.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on July 14, 2026, 11:45:06 AM
Be very careful. Never heard of them. Where did you find them? The website is not serious, and the company (empty shell, really) is 1y old only. Wont call it a scam, but i think i can vibe code the same shit in one afternoon and i m pretty sure registering a HK company costs a few hundred bucks and is dead easy.
https://www.ltddir.com/companies/light-cycling-sports-equipment-co-limited/
They are like velobuild, in that they're clearly a broker. But velobuild has built a reputation after trading for years and years.
If you're going to buy the 126, you're better off buying from the factory (long teng, Alisa will sell it to you if you ask) or Mondince (long teng related party) than from these people. Without hard evidence, i also wouldnt believe they changed the layup, as Mondince brushed off the topic as a non issue. If it's another factory using the moulds, then idk if they share the layup schedule (it is an open mould frame).
Honestly i'd stay away. Unless and until Jack shows that the frame is sprint friendly, i dont think it makes sense to buy that frame. And apparently, he doesnt seem to care.
I also note that some users (like BeR) have reported not noticing anything wrong with the frame flexing at the BB, but why take the risk? My 268 doesnt have nearly the same flex (i repeated the door test) and i can't see any scenario where it would make sense to take such a risk. To be clear, sprinting is one thing, but if you're bombing down a descent at 70+kmh, and you're doing hairpins, the idea of a pool noodle is straight up terrifying (you want something that tracks, not fuzzy lines). If your FTP is low, you dont sprint, you dont race, you ride on the flat, then you're fine, but it's still not a good reason to buy something that's potentially truly impaired.

I definitely would only buy the frame from mondice directly, just found it interesting. As they (Light Cycling) still have the mondice logo in the pictures (at least the m on the headtube) i think its the same frame. And i still think the flex is a big issue so i wont be buying anytime soon, at least for my power it dont think it makes sense.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: pscrs on July 17, 2026, 09:03:39 AM
So, I finally received mine after quite a bit of back and forth with mondince after having a custom paint that went not to plan. After a fair bit of negotiation I paid a  bit extra to go for the UL version (basically to make sure i was getting a fresh frame) in raw carbon (the frame weight with hard ware (no headset) and thru axle still in came to 950g for a 54 considering this is a raw carbon gloss finish claimed weights are just not representative but this is still reasonably light all the same)   and I did get the mondince branding which honestly looks much better than expected in person.

I received both seat posts and most hard ware in black as well as gold which is great as I have loads of spares. Headset bearings the crown race didn't present an issue on my frame at all (so that appears corrected for me too as well as others). The frame appeared to be well made from what i could see shining a torch in there and construction all round pretty solid. I used the 8mm bearing on the top and the 7mm on the bottom, the fits of the headset bearings in the seats were reasonably tight so not super easy to remove by hand, this is good a sloppy headset bearing fit can lead to issues down the line. I did end up facing both front and rear brake mounts however they really both only needed a touch up and would have been able to get a good brake set up without. Same goes for the t47 threads that I chased but honestly i picked up so little material that a BB would've gone in fine without.

The build itself was really straight forward with the fork routing fully guided chich made life really easy. The di2 mount for the seatpost worked great and wasn't particularly fiddly to install. NB for those this eurostyle brake orientation. The entry hole in the steerer is firmly on the right hand side and depending what kind of set up you have if you have to cross the hoses inside the frame rather than in the bars or stem, like I had to since I was using the PRO headset and stem system youll likely getting biased steering. As a result for this build I went back to a UK orientation (left hand lever rear brake)
Only big comment I have is that currently I have is that on 52t rings im quite close to the top of what the fd allows - I want to move to bigger rings asap but I may need to do a bit of thinking about what will actually work for me considering this limitation.

Like other people have noticed that bottom bracket area does flex, I think theres two problems theres a huge amount of material above the bb this kind of does nothing and i youre looking at the bb it is not encased by that shape (I hope that makes sense) I think as a result the bb area is not as stiff due to this and a really narrow down tube i think if they had effectively moved that large area above the bb down and were willing to widen the down tube as it meets the bb it wouldn't be so bad. The chain stays whilst quite tall are really thin. Head tube is actually quite a bit more hourglass shaped than pictures suggest, I don't think the super narrow down tube is necessarily a bad design choice either. I know a lot of people here want more tyre clearance but I would've like to have seen tyres tun closer to the down tube and the back of the seat tube. There's far too much daylight in those areas for my liking oif were wanting to make a "fast" bike.

Honestly the bike felt fast, on my old 2018 scott foil i had a really fast set up and this will be my reference point. On open flat sections and down hills the bike really did feel like it wanted to pick up speed and hold it nicely. Geo wise just going off the charts i think these should've been fairly similar bikes the mondince is 5mm shorter 3.5mm lower. That being said head and seat angles are quite different. This bike felt short in comparison to the foil and i'll likely bump up to a 130mm stem at some point, I probably should've gone for the 56 (i'm a real 54/56 straddler) on this one. Despite the stiffness concerns people have the bike so far after three rides handles really well i'm super happy to take risks in corners on this thing without second guessing myself. Which I think brings me on to the stiffness thing, I honestly dont think its as bad as people say it is (NB im about 75kg and riding the 54 i suspect it might be worse for taller, heavier riders). It honestly feels fine - buut not excellent whilst it doesn't bother me my foil was really stiff and I loved it, that bike felt alive out the saddle and up hill. By comparison this bike doesn't feel quite as lively, but im not about to condemn it either. People still waiting on one, its likely to not be anywhere near as bad as you might think, people thinking of pulling the trigger honestly so far its a good bike I'm really enjoying it and I dont think id necessarily discourage anyone. Herein lies the issue though, with the Velobuild Aerotrace having just been put on a diet and Light Carbon about to release the LCR 020 D I think this becomes super hard to recommend considering those options exist, and honestly if I wasn't desperate to get my hands on a new frame after selling my foil I may well have waited for either of those. In all I paid i think if i recall £630 for the UL frame and shipping for that kind of money i do think it's worth a shot.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on July 17, 2026, 09:32:26 AM
Excellent description—that really nails it when it comes to the riding feel. I feel exactly the same way about steering precision and bottom bracket stiffness. I think the frame’s head tube stiffness is outstanding, in contrast to the bottom bracket.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: pscrs on July 17, 2026, 09:49:35 AM
Excellent description—that really nails it when it comes to the riding feel. I feel exactly the same way about steering precision and bottom bracket stiffness. I think the frame’s head tube stiffness is outstanding, in contrast to the bottom bracket.
Agreed I do think the front of the bike feels stiffer than the back for sure, that huge fork and deep head tube help a lot. Really splitting hairs here the section of the fork is wide Id have likes to seen some thinner profiles on those tubes along with the really deep fork, probably.

I do think it does handle really well just a bit underwhelming out the saddle but again the way it rides is way better than than the flex when leaning on it suggests it might. It's still a good bike in all honesty. I like to think my comments would be the same even if I didn't know about the stiffness concerns, which to be honest I was really worried about before receiving the frame. 

I'll make sure to come back with some longer term comments.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on July 17, 2026, 04:00:17 PM
I am still on the edge about which frame to get. I really prefer the design and look of the mondice over something like the lcr020 or even the new xmcs. Currently I have no real time pressure to decide but I would really like to build up a new bike this year ;D
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on July 17, 2026, 11:22:45 PM
I am still on the edge about which frame to get. I really prefer the design and look of the mondice over something like the lcr020 or even the new xmcs. Currently I have no real time pressure to decide but I would really like to build up a new bike this year ;D

If you have time on your side, waiting before you buy this frame could mean a better layup. It's an open mould, if enough people complain about the BB stiffness, at some point they'll change it.
You could also email Jack to complain about it directly.
I think the reviewer hit the nail on the head: the down tube may be so slim that it's laterally soft. Chinese sellers do not usually ride bikes, and they don't have the watts anyway to push the equipment, and do not usually do layup iterations based on human feedback. There are iso norms and they solve for that.
Anecdotally, the aerotrace from velobuild just lost 150g from using a different layup and T1000.
If you buy now, you're a very early adopter. Pretty much a beta tester.
One of the reasons these frames are cheaper is that early customers are beta testers. But that part is never advertised :)
Title: Re: Long Teng / Mondince aero frame FM126
Post by: BeR on July 23, 2026, 06:28:22 AM
Be very careful. Never heard of them. Where did you find them? The website is not serious, and the company (empty shell, really) is 1y old only. Wont call it a scam, but i think i can vibe code the same shit in one afternoon and i m pretty sure registering a HK company costs a few hundred bucks and is dead easy.
https://www.ltddir.com/companies/light-cycling-sports-equipment-co-limited/
They are like velobuild, in that they're clearly a broker. But velobuild has built a reputation after trading for years and years.
If you're going to buy the 126, you're better off buying from the factory (long teng, Alisa will sell it to you if you ask) or Mondince (long teng related party) than from these people. Without hard evidence, i also wouldnt believe they changed the layup, as Mondince brushed off the topic as a non issue. If it's another factory using the moulds, then idk if they share the layup schedule (it is an open mould frame).
Honestly i'd stay away. Unless and until Jack shows that the frame is sprint friendly, i dont think it makes sense to buy that frame. And apparently, he doesnt seem to care.
I also note that some users (like BeR) have reported not noticing anything wrong with the frame flexing at the BB, but why take the risk? My 268 doesnt have nearly the same flex (i repeated the door test) and i can't see any scenario where it would make sense to take such a risk. To be clear, sprinting is one thing, but if you're bombing down a descent at 70+kmh, and you're doing hairpins, the idea of a pool noodle is straight up terrifying (you want something that tracks, not fuzzy lines). If your FTP is low, you dont sprint, you dont race, you ride on the flat, then you're fine, but it's still not a good reason to buy something that's potentially truly impaired.

After reading this post, I wanted to find out more, so I looked into this seller (Light Cycling). I’ve been chatting with him a lot lately, and honestly, he is super responsive and answers absolutely every question.

 First thing: I really think that this is not a scam. To clear things up, He sells the exact same frames produced by Long Teng.

So, the real question is: Why choose Light Cycling ? In my opinion, there are three main reasons:
1) More choice is always a good thing: We already know these frames are high quality, so having another reliable alternative on the market is great for us.
2) A focus on custom paint: This seller really wants to stand out by offering high-quality, unique paint jobs. He’s currently working hard on this project and should be sharing photos within the next month to show what he can do.
3) A new mold in the works: He also aims to develop a brand-new road bike mold. If the seller listens to our feedback, we could end up with a frame that perfectly matches current market expectations.

Anyway, I recommend reaching out to him if you're in the market for a new frame. The best way is to message him directly and form your own opinion.

Personnaly, I think that I will try to order a frame from them. I will keep you inform.

Because this topic is about the FM126, I will also post this message under "Vendor Discussion & Reviews".
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on July 25, 2026, 11:18:51 AM
Another shock is on the way. The seat tube of my frame is starting to crack. Let's see what Jack has to say about it. The pattern of the crack and the view of the seat tube from above show that it's not just the paint—it's clearly the carbon structure, unfortunately.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on July 26, 2026, 05:39:13 AM
Another shock is on the way. The seat tube of my frame is starting to crack. Let's see what Jack has to say about it. The pattern of the crack and the view of the seat tube from above show that it's not just the paint—it's clearly the carbon structure, unfortunately.

That's a high stress area and it does like a structural crack given it propagates on 2 sides. I remember that velobuild users (pinarello clone) managed to DIY repairs in that area, but you should absolutely get a replacement. The good news is you'll probably pay for shipping for a new frame, get to keep that one, and with a 30 dollar repair kit, you can end up with 2 frames (you might have to order a new fork and seat post, as I wouldn't send you an extra fork and seat post if I were them). If you're bothered by the flex at the chainstays, keep in mind they're somehow tied to long teng, so you could potentially get a different frame that's proven (like the 266 or 301 or whatever). I don't recommend my 268 anymore because it's from 2021, but it's still my daily driver and I'm finding it very hard to justify changing it.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on July 27, 2026, 12:20:34 PM
Jack wants to send me a new frame. I'm curious to see if it works out and if anything has changed about the frame compared to the first versions.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Leon1234 on July 27, 2026, 02:49:00 PM
Jack wants to send me a new frame. I'm curious to see if it works out and if anything has changed about the frame compared to the first versions.

That will be quite interesting but i doubt that they already changed the layup.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Spongel on August 04, 2026, 09:18:51 AM
Hello guys,

stepping in right in now as I am much much interested in this frame and have some serious thought we can discuss about.

Backstory: Just built a Mondince FM336 Gravelbike a month ago. Loved the process, love the riding. But its a gravel bike and it has its own use case which is not speeding on roads. It performs great on gravel. I initially chose size L and think its a very good match. So far I am very pleased with mondince.

Because I also want to do some races and/or triathlons in the future I am thinking about building up a road bike. I asked Jack if he has a road frame and answered with "yes, the fm126". Then I offered, I could produce a buy and build process video on youtube for this particular frame. His answer was, that he can send me the frame for 450€ only - but I have to mention Mondince as brand (no details yet actually in which way he wants me to place the brand).

Keeping the 450€ in Mind its almost a no-brainer. But there is this flexy BB issue which could be kind of dangerous for me: 185cm tall, 90kg heavy.

Do you think I should still consider this frame? Another way to go would be the LCR018D (but its more of a allroad endurance and not meant for racing), the not yet released LCR020 or the fully built up Seraph TT-X71.

I read so many threads about all those frames and the more you read the more issues you find. Its frustrating diving into a rabbit hole and overthink stuff   :-\ :D

Loooking forward to your replies!
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on August 04, 2026, 01:53:29 PM
Hello guys,

stepping in right in now as I am much much interested in this frame and have some serious thought we can discuss about.

Backstory: Just built a Mondince FM336 Gravelbike a month ago. Loved the process, love the riding. But its a gravel bike and it has its own use case which is not speeding on roads. It performs great on gravel. I initially chose size L and think its a very good match. So far I am very pleased with mondince.

Because I also want to do some races and/or triathlons in the future I am thinking about building up a road bike. I asked Jack if he has a road frame and answered with "yes, the fm126". Then I offered, I could produce a buy and build process video on youtube for this particular frame. His answer was, that he can send me the frame for 450€ only - but I have to mention Mondince as brand (no details yet actually in which way he wants me to place the brand).

Keeping the 450€ in Mind its almost a no-brainer. But there is this flexy BB issue which could be kind of dangerous for me: 185cm tall, 90kg heavy.

Do you think I should still consider this frame? Another way to go would be the LCR018D (but its more of a allroad endurance and not meant for racing), the not yet released LCR020 or the fully built up Seraph TT-X71.

I read so many threads about all those frames and the more you read the more issues you find. Its frustrating diving into a rabbit hole and overthink stuff   :-\ :D

Loooking forward to your replies!

I would flag to him your concern. And tell him that if the area isn't stiffened you'll do a ride review and you'll probably find the frame so soft it's unnerving.
If you only make a video about the build and don't say anything about riding quality then we'll all collectively hate you and call you a shill :)
Myself, I wouldn't buy one, I'm 85kg. There are plenty of options that are known not to have that problem. Plenty of scenarios, especially descending, when you want a frame to behave reliably. If you have to slow way down because it feels weird when you're balancing your weight side to side, better buying something else. Safety and enjoyment do matter more than 200 euro.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Spongel on August 04, 2026, 02:02:24 PM
I would flag to him your concern. And tell him that if the area isn't stiffened you'll do a ride review and you'll probably find the frame so soft it's unnerving.
If you only make a video about the build and don't say anything about riding quality then we'll all collectively hate you and call you a shill :)
Myself, I wouldn't buy one, I'm 85kg. There are plenty of options that are known not to have that problem. Plenty of scenarios, especially descending, when you want a frame to behave reliably. If you have to slow way down because it feels weird when you're balancing your weight side to side, better buying something else. Safety and enjoyment do matter more than 200 euro.

Fair enough haha  ;D

I got some interesting news for all of us who are interested in the frame. I shooted Jack some Questions:

"1. Some riders reported noticeable BB/downtube flex in wall tests vs other frames. Did you change the layup or tube design since then? Is the current batch updated? Do you have a BB stiffness value (N/mm) — not just "passed ISO"?
2. I saw a report of a seat tube crack after a few weeks. Was the cause found — one-off or known issue? I'm ~93 kg with a strong sprint. Is the frame rated for that? What's the rider weight limit?
3. For size 58 shipping now: which head tube angle (73° or 74°) and which crown race version (old/updated)?
4. Real tire clearance for size 58 in mm? Does a 32 mm tire fit with room on a 25 mm internal-width rim?
5. Realistic production + shipping time for size 58 in my paint choice?
6. Which frame would I get when paying the Euro450 - normal, super light or ultra light? And is a custom paintjob included?
7. When you say I need to share our website link on my social media I understand, that I link your website in the video description and mark the video as an Ad - is that right?"

He answered:

"1.We have improved this stiffness issue.
2.it may manufacture issue. We have provided a new frame for him;
3.We will provide new crown race.
4.it is designed for 32mm tire.
5.We have size 58cm in stock. And it will need 18 days to do the painting;
6.we just have one version now. Super light one;
7.yes, show our website and leave feedback about this model"

Think the most important part is question 1. Since we dont have any new orders yet we cant confirm that I guess
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on August 04, 2026, 02:31:26 PM
The correct answer is: “We're trying to provide him with a new frame.”

I don't have it yet.
But so far, Jack has been very reliable when it comes to things like sending the new fork crown.

When the time comes, I'll be able to directly compare whether a new layup has actually improved the frame's stiffness.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Tpower59 on August 08, 2026, 01:16:54 PM
Really impatient to know if the new version fixes this ! Could replace my TT-X68 with this
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Xtakayamax on August 18, 2026, 04:22:10 PM
So, I finally received mine after quite a bit of back and forth with mondince after having a custom paint that went not to plan. After a fair bit of negotiation I paid a  bit extra to go for the UL version (basically to make sure i was getting a fresh frame) in raw carbon (the frame weight with hard ware (no headset) and thru axle still in came to 950g for a 54 considering this is a raw carbon gloss finish claimed weights are just not representative but this is still reasonably light all the same)   and I did get the mondince branding which honestly looks much better than expected in person.

I received both seat posts and most hard ware in black as well as gold which is great as I have loads of spares. Headset bearings the crown race didn't present an issue on my frame at all (so that appears corrected for me too as well as others). The frame appeared to be well made from what i could see shining a torch in there and construction all round pretty solid. I used the 8mm bearing on the top and the 7mm on the bottom, the fits of the headset bearings in the seats were reasonably tight so not super easy to remove by hand, this is good a sloppy headset bearing fit can lead to issues down the line. I did end up facing both front and rear brake mounts however they really both only needed a touch up and would have been able to get a good brake set up without. Same goes for the t47 threads that I chased but honestly i picked up so little material that a BB would've gone in fine without.

The build itself was really straight forward with the fork routing fully guided chich made life really easy. The di2 mount for the seatpost worked great and wasn't particularly fiddly to install. NB for those this eurostyle brake orientation. The entry hole in the steerer is firmly on the right hand side and depending what kind of set up you have if you have to cross the hoses inside the frame rather than in the bars or stem, like I had to since I was using the PRO headset and stem system youll likely getting biased steering. As a result for this build I went back to a UK orientation (left hand lever rear brake)
Only big comment I have is that currently I have is that on 52t rings im quite close to the top of what the fd allows - I want to move to bigger rings asap but I may need to do a bit of thinking about what will actually work for me considering this limitation.

Like other people have noticed that bottom bracket area does flex, I think theres two problems theres a huge amount of material above the bb this kind of does nothing and i youre looking at the bb it is not encased by that shape (I hope that makes sense) I think as a result the bb area is not as stiff due to this and a really narrow down tube i think if they had effectively moved that large area above the bb down and were willing to widen the down tube as it meets the bb it wouldn't be so bad. The chain stays whilst quite tall are really thin. Head tube is actually quite a bit more hourglass shaped than pictures suggest, I don't think the super narrow down tube is necessarily a bad design choice either. I know a lot of people here want more tyre clearance but I would've like to have seen tyres tun closer to the down tube and the back of the seat tube. There's far too much daylight in those areas for my liking oif were wanting to make a "fast" bike.

Honestly the bike felt fast, on my old 2018 scott foil i had a really fast set up and this will be my reference point. On open flat sections and down hills the bike really did feel like it wanted to pick up speed and hold it nicely. Geo wise just going off the charts i think these should've been fairly similar bikes the mondince is 5mm shorter 3.5mm lower. That being said head and seat angles are quite different. This bike felt short in comparison to the foil and i'll likely bump up to a 130mm stem at some point, I probably should've gone for the 56 (i'm a real 54/56 straddler) on this one. Despite the stiffness concerns people have the bike so far after three rides handles really well i'm super happy to take risks in corners on this thing without second guessing myself. Which I think brings me on to the stiffness thing, I honestly dont think its as bad as people say it is (NB im about 75kg and riding the 54 i suspect it might be worse for taller, heavier riders). It honestly feels fine - buut not excellent whilst it doesn't bother me my foil was really stiff and I loved it, that bike felt alive out the saddle and up hill. By comparison this bike doesn't feel quite as lively, but im not about to condemn it either. People still waiting on one, its likely to not be anywhere near as bad as you might think, people thinking of pulling the trigger honestly so far its a good bike I'm really enjoying it and I dont think id necessarily discourage anyone. Herein lies the issue though, with the Velobuild Aerotrace having just been put on a diet and Light Carbon about to release the LCR 020 D I think this becomes super hard to recommend considering those options exist, and honestly if I wasn't desperate to get my hands on a new frame after selling my foil I may well have waited for either of those. In all I paid i think if i recall £630 for the UL frame and shipping for that kind of money i do think it's worth a shot.

Thats an excellent description. couldn't be better than this, thank you for taking the time.
Do you feel that the flex is only on the BB? how about the front end of the bike? as a 190cm with 79kg I am a bit afraid that there is too much leverage on the whole bike as tubes get longer and I would feel it more flex than people riding smaller frames, specially on the front end which bothers me the most on other bikes I had in the past.
Also, are those wheels from them or from somewhere else? the build is looking fantastic.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on August 24, 2026, 09:57:56 AM
Hey guys, got mine replacement frame today.
I can see they improved things.
E.g. the mounting of the bottle cage screws inside the downtube.
Unfortunately the frame is broken, see the Video.
Transportbox is not damaged, so i guess it happened before packaging.
Very frustrating.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Serge_K on August 24, 2026, 11:56:30 PM
Hey guys, got mine replacement frame today.
I can see they improved things.
E.g. the mounting of the bottle cage screws inside the downtube.
Unfortunately the frame is broken, see the Video.
Transportbox is mit damaged, so i guess it happened before packaging.
Very frustrating.

Eric Cartman had awesomo 3000. This is bummero 3000 :/
Haven't heard of frames broken in transport for a long time. Very odd.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on August 25, 2026, 02:10:54 AM
They're going to send me another frame. Then I'll have three identical frames here, two of which are broken. What should I do with them? 😅 Does anyone have any craft ideas for the broken frames?
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Dark17 on August 25, 2026, 02:24:41 AM
That's a nice display for a coffee shop if you have one or if you know someone who has.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on August 26, 2026, 04:14:02 AM
I suspect that when sanding before painting, too many layers of the carbon layup were sanded away. I think 4 or maybe 5 layers were sanded through, as you can see in the photo. Designs with edges don't seem to be ideal in this regard. I'll test the next frame very carefully.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: Lotnik on August 26, 2026, 05:56:46 AM
I suspect that when sanding before painting, too many layers of the carbon layup were sanded away. I think 4 or maybe 5 layers were sanded through, as you can see in the photo. Designs with edges don't seem to be ideal in this regard. I'll test the next frame very carefully.
That's a normal carbon fiber layup look.
Title: Re: Long Teng / Mondince aero frame FM126
Post by: bigApple on August 26, 2026, 06:21:58 AM
I know what carbon looks like. This is my 10th frame with a raw carbon finish. I don't think you understood what I meant. This isn't just a regular seam between two carbon plies. When the frames come out of the mold, they're sanded down to remove excess resin and prepare the surface for painting. However, excessive sanding can cut through the top layers of carbon. That’s exactly what happened here at the edge in the middle of the down tube. When you press on it, you can feel that the carbon layer isn’t thick enough here anymore.