Chinertown

Chinese Carbon MTB => 29er => Topic started by: northup on June 05, 2020, 10:10:07 AM

Title: Another Tan Tan FM10
Post by: northup on June 05, 2020, 10:10:07 AM
Pulled the trigger on the FM10. From Alibaba (not express) it was actually quite reasonable: $641 shipped to Massachusetts.

I'm migrating a bunch of parts over from my current bike to make sure I can feel how the frame is, but I got some fun chiner parts that I'm excited to try out on my old frame.

The build is gonna go something like this:

Frame           Tan Tan FM10
Rear shock    rockshox deluxe rt3 debonair 205x57.5 (trunnion)
Fork              lyric 160mm 27.5 boost
post              x fusion manic 150 31.6
wheels          27.5+ Duroc 40mm boost (because I have them. Debating moving to 29x2.3/4)
groupset       Shimano SLX 1x11 groupset
cranks          Simano SLX grpst
brakes          Shimano SLX grpst
rotors           Shimano SLX grpst
bb                Shinamo bb92
tires             Maxxis Recon 27.5 x 2.8
bars             Chiner carbon
stem            Chiner carbon
seat             Chiner carbon

My rear shock is just a touch longer than the frame asks for, so I'm hoping that with proper sag accommodation, and running the lyrik at ~155mm I should have the geometry close to spec. Hoping it makes a somewhat more playful enduro bike than a hill slayer. I'd have preferred the 21" frame but the mold isn't open yet, so I'll be maxing out the 19" frame and I'll gift it to my brother when the 21" opens up. Or if I hate it I'll try something new.

On to some of the chiner parts I bought to flesh out my old frame once I strip it down.

I bought the LTwoo AT12 groupset (with the carbon fiber derailleur bracket) and I can't wait to see how that plays out. Cranks and all for $200
https://www.aliexpress.com/item/32988332452.html?spm=a2g0s.9042311.0.0.7ffa4c4dWd6tIO

I also bought these super sketchy looking Deore M8000 clone hydraulic brakes! I'll admit this sounds like a bad idea on paper, and it may be in practice as well, but for $50 and a pile of good reviews I couldn't stop myself (and they may not be able to either).
https://www.aliexpress.com/item/4000176894248.html?spm=a2g0s.9042311.0.0.7ffa4c4dWd6tIO

Still investigating the carbon wheel market, I'm not sure if I want my next set to be 29ers, narrower 27.5s, or what have you, so if you have any strong opinions, I'm game to hear about wheels you like.

I figure it'll take at least a month to get here, if not two with the way things are moving from China these days, so no rush, but I'll update as parts show up.
Title: Re: Another Tan Tan FM10
Post by: emu26 on June 05, 2020, 04:12:48 PM
Good luck, I hope that shock fits.

Also, may I ask how tall you are and inseam length?
Title: Re: Another Tan Tan FM10
Post by: nh185 on June 05, 2020, 04:44:42 PM
Quote from: northup on June 05, 2020, 10:10:07 AM

I bought the LTwoo AT12 groupset (with the carbon fiber derailleur bracket) and I can't wait to see how that plays out. Cranks and all for $200
https://www.aliexpress.com/item/32988332452.html?spm=a2g0s.9042311.0.0.7ffa4c4dWd6tIO

Have you done any research on the LTwoo derailleurs? From what I’ve heard they are lacking a clutch hence they drop the chain pretty easily in rougher terrain.

Right now the "S-Ride" derailleurs seem to be the better option as they have a clutch built in. Now the clutch is still not adjustable but they have one at least. The M600 is their top model and is pretty much the same as the AT12 minus the carbon cage and plus clutch.

https://www.aliexpress.com/item/4000127532043.html?spm=a2g0o.productlist.0.0.539c4896AeuieU&algo_pvid=a650b08d-b022-4825-8b7f-69551abc02f0&algo_expid=a650b08d-b022-4825-8b7f-69551abc02f0-3&btsid=0ab6d67915913928165396032e6e54&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

For further information you can check out Trybo Bike Tech on YouTube. He did a comparison of chinese derailleurs including LTwoo, S-Ride and Sensah a few months ago:
https://www.youtube.com/watch?v=7mpsAORPZeo

The reviewed derailleurs are the "mid range" products of each company

The rest of the groupset looks pretty solid to me though one could argue that you could get a derailleur+shifter, a lighter 12 speed cassette, a superb crank and a chain on Aliexpress for a couple bucks more than the groupset
Title: Re: Another Tan Tan FM10
Post by: northup on June 05, 2020, 08:26:52 PM
Quote from: emu26 on June 05, 2020, 04:12:48 PM
Good luck, I hope that shock fits.

Also, may I ask how tall you are and inseam length?

I hope so too, 5mm is pretty small ¯\_(ツ)_/¯

I'm 6'3 with a 35" inseam  :-[
Title: Re: Another Tan Tan FM10
Post by: northup on June 05, 2020, 08:30:40 PM
Quote from: nh185 on June 05, 2020, 04:44:42 PM
Quote from: northup on June 05, 2020, 10:10:07 AM

...
Right now the "S-Ride" derailleurs seem to be the better option as they have a clutch built in. Now the clutch is still not adjustable but they have one at least. The M600 is their top model and is pretty much the same as the AT12 minus the carbon cage and plus clutch.
...


Interesting, I had done a bit of research but as always, not enough. I'll take a look at the video and read up some more, thanks for the tips. This would be for my old frame so I don't need anything immediately.
Title: Re: Another Tan Tan FM10
Post by: carbonazza on June 06, 2020, 04:22:56 AM
Wow ! That is a very interesting build! Thank you for trying so much things.
One recent non-carbon component I tried from Ali is Deckas floating disc brakes.
https://a.aliexpress.com/_dS85pS6
They are great.

Quote from: nh185 on June 05, 2020, 04:44:42 PM
The rest of the groupset looks pretty solid to me though one could argue that you could get a derailleur+shifter, a lighter 12 speed cassette, a superb crank and a chain on Aliexpress for a couple bucks more than the groupset
nh185, do you have some links to share?
Title: Re: Another Tan Tan FM10
Post by: nh185 on June 06, 2020, 06:37:53 PM
Quote from: carbonazza on June 06, 2020, 04:22:56 AM
nh185, do you have some links to share?

Sure thing!

For the crankset the Fovno Phantom seems to be a pretty solid choice. Either comes with GXP mount or GXP mounted 104 BCD adapter. Comes in a range of colours and looks quite well machined.

https://www.aliexpress.com/item/4000579042697.html?spm=a2g0o.productlist.0.0.78b81246WRODvB&algo_pvid=64902c25-59dc-4087-924f-9ab7fe81a47e&algo_expid=64902c25-59dc-4087-924f-9ab7fe81a47e-1&btsid=0ab6f82215914855710491854e434f&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

If you want to go proper budget build the IXF crankset seems to be a pretty solid choice aswell, build wise I think you can not fault them but theyre certainly no eyecandy unlike the Fovnos.

https://www.aliexpress.com/item/32993443563.html?spm=a2g0o.productlist.0.0.6be762457cwdAx&algo_pvid=33c1f1ab-fd25-4a52-b476-fb9344a5c9d4&algo_expid=33c1f1ab-fd25-4a52-b476-fb9344a5c9d4-0&btsid=0ab6fa8115914857606664241e7f0a&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

As for the cassette an 11-50 12 speed would be the way to go here. These guys here claim that their cassette only weighs 399g - I dont know whether thats true but the cogs kind of look like the GX eagle cogs hence the weight could be legit.

https://www.aliexpress.com/item/32961018282.html?spm=a2g0o.productlist.0.0.6b946966FoP3EU&algo_pvid=3ec8587c-fd9a-4f14-a434-441c235a0692&algo_expid=3ec8587c-fd9a-4f14-a434-441c235a0692-33&btsid=0be3764515914859315868173e81e1&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

If you wanna go proper budget on the cassette this would be an option. You gotta live with the weight though.

https://www.aliexpress.com/item/32964520421.html?spm=a2g0o.productlist.0.0.6b946966FoP3EU&algo_pvid=3ec8587c-fd9a-4f14-a434-441c235a0692&algo_expid=3ec8587c-fd9a-4f14-a434-441c235a0692-9&btsid=0be3764515914859315868173e81e1&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

As far as derailleurs and shifters are concerned I already posted the link of the S-Ride in my post above.

As for the chain you could use pretty much any 12 speed chain on Aliexpress or go for proven quality and buy a KMC.
Title: Re: Another Tan Tan FM10
Post by: northup on June 08, 2020, 08:11:25 AM
Thanks for the input around groupsets nh185.

I ended up going with the S-Ride M600, the Sunshine 11-50 12speed cassette, and the Fovno crankset.

This store had the cassette for ~10USD cheaper:
https://www.aliexpress.com/item/4000407665162.html?spm=a2g0s.9042311.0.0.67c74c4dKBXBip

I assume I won't see any of it for 30-50 days, but I am certainly excited.

Also, I heard from Lisa at Tan Tan this morning about the frame from Alibaba so I expect that to be shipped in a day or two. She estimated 25-35 days for that arrival.

This ended up being ~$265 all in, about 60 more than the AT12 groupset for a significant weight decrease (as well as increased chain retention with the strength of the S-Ride clutch).
Title: Re: Another Tan Tan FM10
Post by: GreyCactus on June 08, 2020, 08:15:21 AM
Quote from: nh185 on June 06, 2020, 06:37:53 PM
Quote from: carbonazza on June 06, 2020, 04:22:56 AM
nh185, do you have some links to share?

Sure thing!

For the crankset the Fovno Phantom seems to be a pretty solid choice. Either comes with GXP mount or GXP mounted 104 BCD adapter. Comes in a range of colours and looks quite well machined.

https://www.aliexpress.com/item/4000579042697.html?spm=a2g0o.productlist.0.0.78b81246WRODvB&algo_pvid=64902c25-59dc-4087-924f-9ab7fe81a47e&algo_expid=64902c25-59dc-4087-924f-9ab7fe81a47e-1&btsid=0ab6f82215914855710491854e434f&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

If you want to go proper budget build the IXF crankset seems to be a pretty solid choice aswell, build wise I think you can not fault them but theyre certainly no eyecandy unlike the Fovnos.

https://www.aliexpress.com/item/32993443563.html?spm=a2g0o.productlist.0.0.6be762457cwdAx&algo_pvid=33c1f1ab-fd25-4a52-b476-fb9344a5c9d4&algo_expid=33c1f1ab-fd25-4a52-b476-fb9344a5c9d4-0&btsid=0ab6fa8115914857606664241e7f0a&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

As for the cassette an 11-50 12 speed would be the way to go here. These guys here claim that their cassette only weighs 399g - I dont know whether thats true but the cogs kind of look like the GX eagle cogs hence the weight could be legit.

https://www.aliexpress.com/item/32961018282.html?spm=a2g0o.productlist.0.0.6b946966FoP3EU&algo_pvid=3ec8587c-fd9a-4f14-a434-441c235a0692&algo_expid=3ec8587c-fd9a-4f14-a434-441c235a0692-33&btsid=0be3764515914859315868173e81e1&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

If you wanna go proper budget on the cassette this would be an option. You gotta live with the weight though.

https://www.aliexpress.com/item/32964520421.html?spm=a2g0o.productlist.0.0.6b946966FoP3EU&algo_pvid=3ec8587c-fd9a-4f14-a434-441c235a0692&algo_expid=3ec8587c-fd9a-4f14-a434-441c235a0692-9&btsid=0be3764515914859315868173e81e1&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

As far as derailleurs and shifters are concerned I already posted the link of the S-Ride in my post above.

As for the chain you could use pretty much any 12 speed chain on Aliexpress or go for proven quality and buy a KMC.

I’m really interested in your drivetrain review!
Actually I’m happy with the smoothness of shimano derallieur, with a strong 11-46 sunrace, more durable than shimano cassette IMO.
Title: Re: Another Tan Tan FM10
Post by: northup on June 18, 2020, 08:23:11 AM
Hello folks - I've decided to cancel the frame order and close out this build. I want to wait to see what corrections they can make on the frame, and with the progress on the AM831 group buy, I'm more confident they'll open up an XL frame with the interest we've shown. Tan Tan doesn't seem to have plans to mold and test a 21" frame any time soon.

I'll swap the drivetrain parts onto my hardtail for testing, especially the brakes, I'm very curious, but that will be all the progress you'll see from here. I'll start another build thread when final orders are confirmed for the AM831/SC clone later this year, I'm guessing this fall.
Title: Re: Another Tan Tan FM10
Post by: northup on June 19, 2020, 09:34:18 AM
Welp, we're back on. I talked with Lisa in the wee hours and it turns out the 21" mold is open and she thinks they can turn one around in 30 days, so I may end up with the first. That's a bit terrifying for me given the issues we've seen with the 19" frame, but I'll be the guinea pig on this one.
Title: Re: Another Tan Tan FM10
Post by: GuitsBoy on June 20, 2020, 08:01:47 AM
I know what you mean!  But assuming they've changed the actual rocker / metal piece to give more clearance, you shouldn't run into the same problem I did.  Otherwise the frame is very well thought out IMO.  Good luck with the build.
Title: Re: Another Tan Tan FM10
Post by: northup on July 06, 2020, 09:55:17 AM
Parts are starting to come in, and I'm getting excited. Pics to come (as soon as I figure that out) but the stand out pieces are the BRAKES! The look fantastic. The machining is better than pretty much anything I've ordered from China. They come bled and set up, but I'll have to redo the rear to get it through the frame.
Title: Re: Another Tan Tan FM10
Post by: northup on July 06, 2020, 10:40:24 AM
Here are the brakes:

https://imgur.com/a/6Hj75L9 (https://imgur.com/a/6Hj75L9)
Title: Re: Another Tan Tan FM10
Post by: northup on July 06, 2020, 10:57:33 AM
Quote from: GreyCactus on June 08, 2020, 08:15:21 AM
I’m really interested in your drivetrain review!
Actually I’m happy with the smoothness of shimano derallieur, with a strong 11-46 sunrace, more durable than shimano cassette IMO.

So the parts in hand now for the drivetrain are:
Fovno gxp crankset, with a Deckas oval 34t chainring - still waiting on the GXP to 104BCD adapter to get that mounted up
SRide M600 derailleur in the funky gold, and the mated M600 12sp shifter (which is crazy light)
Sunshine-SZ 11-50T 12sp cassette
and I treated myself to some chiner "Kactus (https://www.aliexpress.com/item/32820550688.html?spm=a2g0s.9042311.0.0.27424c4dOrnRZM)" pedals, Magnesium casting, Titanium spindles, and a claimed 223g for the pair with an 11.8cm x 9.8cm platform for my size 14 (EU48) shoes. There is a version with a smaller platform claiming 200g/pair.

I'm not upset with the SLX groupset, it's treated me well, but it'll be nice to compare it to something different. I tend to learn by doing so I'm excited to get to know the components and their nuances. I can't speak much to parts just by reading a spec sheet.

As always, still waiting on the frame.....
Title: Re: Another Tan Tan FM10
Post by: carbonazza on July 07, 2020, 02:39:03 AM
Quote from: northup on July 06, 2020, 10:40:24 AM
Here are the brakes:

https://imgur.com/a/6Hj75L9 (https://imgur.com/a/6Hj75L9)

Nice find!
I'm collecting references of good and cheap parts, to make cheaper bikes, than I usually build.
This looks to be the brakes ! I look forward for your test impressions.
Title: Re: Another Tan Tan FM10
Post by: emu26 on July 07, 2020, 11:24:19 PM
Are there bleed nipples / screws on them or not?
Title: Re: Another Tan Tan FM10
Post by: Icyseanfitz on July 08, 2020, 06:03:03 AM
After buying a set of the same brakes, curious as to wether they are any good.
Title: Re: Another Tan Tan FM10
Post by: northup on July 08, 2020, 07:54:22 AM
Quote from: emu26 on July 07, 2020, 11:24:19 PM
Are there bleed nipples / screws on them or not?

Would be a heck of a job without them! There is a bleed screw. It's the aluminum T10 screw, upper right of the caliper in this photo (https://i.imgur.com/2wTXlj3.jpg).

I don't have the size/thread pitch yet but it is likely possible you could add a nipple instead. I guess because it's just mineral oil, a rag would do over a nipple? I'm coming from cars and motorcycles, so I have a learned fear of brake fluid touching anything.
Title: Re: Another Tan Tan FM10
Post by: northup on July 08, 2020, 07:55:54 AM
Quote from: Icyseanfitz on July 08, 2020, 06:03:03 AM
After buying a set of the same brakes, curious as to wether they are any good.

I'm heading out next weekend (10 days) and I'll put the front caliper on my hardtail and do some testing. I'm very curious as to whether or not they'll actually stop a bike.
Title: Re: Another Tan Tan FM10
Post by: northup on July 08, 2020, 09:52:08 AM
Pulled the trigger on some wheels for the build today. I'm going to build up a set with:

Light Bicycle AM733 32H rims (27.5 40mm outer, 36mm inner, ~460g)
Bitex BX211 front and rear hubs (6 bolt brakes, boost spacing, 276g rear, 141g front
Sapim D-light spokes (~310g)
Sapim brass nipples (~61 g)

Should end up somewhere in the ballpark of 1750g, not too bad for USD 705.50 all in. That said, I have to lace them but I'm ok with that.
I just couldn't get over paying 3x for CX-ray spokes. Maybe sometime down the line.

Hubs, spokes, nipples from bikehubstore.com, rims straight from light bicycle.
Title: Re: Another Tan Tan FM10
Post by: carbonazza on July 08, 2020, 04:11:33 PM
@northup, did you ask for the price of a wheelset to LB ?
I'm almost sure you would have it built and shipped for that price.

I noticed buying spokes and hubs here and rims there was more expensive.
Not counting building them myself, instead of just insure an even tension, as I do now.

Pillar spokes have a flat version too, and are cheaper than cx-ray
Pillar nipples don't age well compared to SAPIM's.
Title: Re: Another Tan Tan FM10
Post by: northup on July 09, 2020, 12:46:07 PM
I did ask, though they said they didn't stock Bitex hubs, and I didn't want to pay for I9 or 240s for this wheelset. If I decide I really love 27.5x2.6-2.8 on this bike then I may swap out the hubs. I don't mind building wheels, it's peaceful.

Part of it was also information overload. I had a hard time finding one supplier to have all the options, and put together a wheel I wanted, so after going back and forth with a few different companies, I decided to just buy the rims from LB. Once I had the rims on the way, I sorted out the rest and it's on the way to my door.

I may not have min/maxed perfectly, or found the optimal combination of high quality, low price, and good labor, but it's done and I don't want to hunt anymore :)
Title: Re: Another Tan Tan FM10
Post by: northup on July 23, 2020, 06:40:54 AM
Alright, so I got confirmation that production of the FM10 in XL is complete!! It's going out for paint (the matte finish), then they expect to be shipping it in 10-12 days. I'm not holding my breath for that estimate, but almost all the other parts are here so I'm ready to get started. To curb my excitement, I'll share a final parts list with each part weighed on my scale and see what we're looking at for a ballpark weight. Shooting for 27lbs, but the internet specs rarely tell the real story. That, and I have NO idea what the XL frame will weigh.
Title: Re: Another Tan Tan FM10
Post by: Colt__Seavers on July 23, 2020, 02:00:41 PM
If the sketchy brakes won't work.
These one do: ZOOM HB-875
https://a.aliexpress.com/_BSvSKL
Title: Re: Another Tan Tan FM10
Post by: emu26 on July 23, 2020, 05:29:11 PM
Quote from: Colt__Seavers on July 23, 2020, 02:00:41 PM
If the sketchy brakes won't work.
These one do: ZOOM HB-875
https://a.aliexpress.com/_BSvSKL

Really?  That's good to hear. I saw those on Wednesday and was joking with him that I had found his next set of brakes, he complains about his rear xt every other week. What pads do they take?
Title: Re: Another Tan Tan FM10
Post by: northup on July 27, 2020, 07:49:20 PM
Quote from: Colt__Seavers on July 23, 2020, 02:00:41 PM
If the sketchy brakes won't work.
These one do: ZOOM HB-875
https://a.aliexpress.com/_BSvSKL

Haha amazing. These squeeze the calipers, so we'll see how things shake out.
Title: Re: Another Tan Tan FM10
Post by: northup on July 27, 2020, 07:55:02 PM
Okay, I think this is the final parts list for the time being. I've got almost everything except the frame and the tires so I doubt it will change (much).

FrameSeraph FM102880g (best guess)
Rear shock185x55 Deluxe Ultimate320g
Forkpike ultimate 1501850g
postx fusion manic 150570g
wheelsLight Bicycle AM733 on Bitex 211F/R1630g
tire - frontDHF 27.5 x 2.6965g
tire - rearDHRII 27.5 x 2.6945g
groupsetS-Ride 1x12373g
cassetteSunshine 11-50T 12ps399g
cranksFavno Phantom, 545g
chainring adapterFavno spider 40g
chainringDeckas 34T Oval50g
brakesChinamo M8000 clone275g
rotorsZTTO 203 front, 180 rear336g
rotor adapters180 PM to PM, 200 PM to PM75g
bbWaiting for frame to make a decisionN/A
HeadsetZTTO91g
spacersCarbon spacers¯\_(ツ)_/¯
stemULLICYC carbon/alu135g
barsULLICYC 800mm risers220g
saddleULLICYC generic cf145g
pedalsKactus Ti spindle magnesium casting223g
chainkmc x12225g
gripsRock Bros big foamie something or other70g
Title: Re: Another Tan Tan FM10
Post by: northup on July 27, 2020, 08:37:12 PM
Sitar_ned, if you want to move this over to 27.5, I decided to stick with the smaller wheels and see how the frame fares with the flip chip on high and the 185 shock
Title: Re: Another Tan Tan FM10
Post by: northup on August 10, 2020, 08:44:29 PM
Alright, I received confirmation of shipping today, so now the long wait to see when it arrives. I also grabbed a ZTTO ceramic bottom bracket for the bike.
Title: Re: Another Tan Tan FM10
Post by: emu26 on August 10, 2020, 09:56:06 PM
Glad to hear it has finally shipped. How much longer than they said did it take? 
Title: Re: Another Tan Tan FM10
Post by: northup on August 11, 2020, 08:37:40 AM
It was about a month longer than they'd thought. That said, it will be the first production XL mold of the frame, so I wasn't surprised it took them a while to get things going. I'm interested to see how the measurements match up to what they say on the site. I was patient and did not rush their production schedule, I didn't want any corners cut in manufacturing or testing. i was able to get a response from Lisa at TanTan every week or so, so the communication was better than I expected (thanks Lisa!) so I'm very excited to see the final product.
Title: Re: Another Tan Tan FM10
Post by: northup on August 14, 2020, 09:42:37 AM
Also, in the interest of trying out cheap chinese parts, I purchased a set of DAIRS 29" wheels shipped for $500. I don't have a set of 29er wheels, and with the variance in frame performance, I figured it would be good to have one of each. Whichever I don't use on the FM10 can go on my hardtail.

29er 35mm outer by 29mm inner
Bitex 402 straight pull hubs (if you haven't checked these out, take a look. I think they're great value for $)
1420 spokes (32h/32h)
estimated 1550g
https://www.aliexpress.com/item/32951880889.html?spm=a2g0s.12269583.0.0.5a932203ZNo9lG
Too good to be true? maybe, probably, we'll see.

We'll see what happens. I've got a trip out to CO for 3 weeks in september, so if my wheels, lightbicycle rims, and/or frame don't come in by 9/5 I unfortunately won't be able to test right away and will be afk for a while here.
Title: Re: Another Tan Tan FM10
Post by: emu26 on August 14, 2020, 12:34:09 PM
Being well north of 90kg, I wouldn't dare ride a set of Dairs.  Sorry, had to be done.

Will be interesting to hear your reports when you get them.
Title: Re: Another Tan Tan FM10
Post by: northup on August 15, 2020, 06:44:00 AM
Yea, I was very curious, as they seem super light. I wouldn't mind them on my xc bike, it doesn't get thrashed. The beefier wheels should do well for the FM10. That said, I am only ~73kg ¯\_(ツ)_/¯
Title: Re: Another Tan Tan FM10
Post by: northup on August 21, 2020, 02:48:17 PM
The bike is here! It shipped quite quickly, so I'm happy about that. Packaging was good, frame looks good, as I start to put it together I'll figure out the finer points.

ONE MAJOR ISSUE: The "hood" that covers a trunnion shock does not fit a RockShox Deluxe 185x55 (or any in that family I would guess). The hood isn't deep enough for the shock to pivot or align to connect the rear triangle. It's a shame, but if any of you have any ideas, I'm trying to get this bike ride-able by September!

Here are some photos. I'll update this same album with progress. The photo with my hand is me pulling down on the shock, it doesn't move at all.

https://photos.app.goo.gl/vfacLJJCdJHHZh247

Title: Re: Another Tan Tan FM10
Post by: emu26 on August 21, 2020, 04:33:18 PM
Quote from: northup on August 21, 2020, 02:48:17 PM
The bike is here! It shipped quite quickly, so I'm happy about that. Packaging was good, frame looks good, as I start to put it together I'll figure out the finer points.

ONE MAJOR ISSUE: The "hood" that covers a trunnion shock does not fit a RockShox Deluxe 185x55 (or any in that family I would guess). The hood isn't deep enough for the shock to pivot or align to connect the rear triangle. It's a shame, but if any of you have any ideas, I'm trying to get this bike ride-able by September!

Here are some photos. I'll update this same album with progress. The photo with my hand is me pulling down on the shock, it doesn't move at all.

https://photos.app.goo.gl/vfacLJJCdJHHZh247

Well that sucks.

Am I right in understanding that when you pivot the rear end of the shock down low enough to engage the mounting holes on the swing arm, the top front edge of the can hits the underside f the top tube?  Short of having someone mill up some new swing linkages I can't think of a resolution for this.

Can you check and post the outer diameter of the can you have so others can check it against shocks they have.

Thanks for sharing that, I was close to pulling the trigger on a RS trunnion shock yesterday.
Title: Re: Another Tan Tan FM10
Post by: emu26 on August 21, 2020, 04:34:22 PM
Oh, and the obvious question, have you contacted the seller yet to see what they say?
Title: Re: Another Tan Tan FM10
Post by: northup on August 21, 2020, 06:29:03 PM
I have contacted the seller. I'll get some measurements. Yes you're right in what you think is happening. In my picture with the hand, it actually sits in that position and is completely immobile, lined up more with the top tube than anywhere near the appropriate part of the linkage.

If anyone's in the market for a new 185x55 trunnion RS Deluxe Ultimate, let me know!  :'(
Title: Re: Another Tan Tan FM10
Post by: northup on August 21, 2020, 06:37:06 PM
54mm diameter canister on the rs deluxe
Title: Re: Another Tan Tan FM10
Post by: emu26 on August 21, 2020, 08:45:32 PM
Quote from: northup on August 21, 2020, 06:37:06 PM
54mm diameter canister on the rs deluxe

From memory spacing between tabs was also 54mm. I know this doesn't help you but you'd think they would give another couple of mm clearance to the top to allow for the shock to pivot.  It would be wonderful if they actually specified the specific shock that the frame was actually tested with to try and save all of these types of issues.
Title: Re: Another Tan Tan FM10
Post by: emu26 on August 22, 2020, 02:35:47 AM
Looking at RS and Fox side by side I'm guessing the slightly splayed top edge of the Fox is enough to allow it to pivot and that little nib on the RS is what causes the problem.  Damn.

Title: Re: Another Tan Tan FM10
Post by: northup on August 22, 2020, 07:00:44 AM
Yea, that's sort of what I'm thinking.  Though I'm not ready to put dollars down just to see if it will fit... I did reach out to ask if they have a list of shocks the bike can use, but I forget that when dealing with china, it's very likely that whatever you don't specify to a painfully specific degree will be wrong.

I'm looking at the new xfusion h3c shock too, looks like it will surely fit.

(https://www.xfusionshox.com/upload/201906141151070dhax1156090859918k.jpg)
Title: Re: Another Tan Tan FM10
Post by: northup on August 26, 2020, 05:59:30 AM
I found a good deal on a fox dpx2 185x55 trunnion that should come tomorrow, so I'm looking forward to getting that fitted. there's a lot less on the fox shocks above the mounts, so I don't think it will come in contact with the hood. Still waiting on the wheels and BB, but the initial assembly is looking pretty good, so I'm excited to finish it up. I'll be in CO for 3 weeks in september so I'll have a lot of trail/test/tinker time to dial things in - definitely looking forward to that, but I'm doubtful that the dairs wheels will come in time for that trip. I'll likely have to do a separate review later on.
Title: Re: Another Tan Tan FM10
Post by: emu26 on August 26, 2020, 06:12:49 AM
good stuff mate, hope it works.  Got a link to that good deal or was it a one off?
Title: Re: Another Tan Tan FM10
Post by: northup on August 26, 2020, 07:42:42 AM
One off, craigslist willing to ship. I've seen a lot of good stuff on pinkbike though, a couple going for around $300 new
Title: Re: Another Tan Tan FM10
Post by: northup on August 27, 2020, 01:30:25 PM
Confirming the DPX2 fits. The shock mounts on the fox are closer to the top of the canister, so no problems with swing.
Title: Re: Another Tan Tan FM10
Post by: emu26 on August 27, 2020, 03:45:05 PM
Good stuff, pleased it worked out for you.
Title: Re: Another Tan Tan FM10
Post by: northup on September 18, 2020, 08:47:37 PM
Alright - major update after a long silence. The bike is together, and absolutely rips. I'm really happy with it.

I took my time on assembly, and greased, threadlocked, and torqued things to spec. I had one small creak around the seatpost, but re-torquing the seatpost clamp seems to have solved that issue.

I'm out in Colorado at the moment, and I've so far completed a 12mi ~2000ft elevation ride, and a 10.5mi ~1000 ft ride. Mostly singletrack, loose over hard, 1-2ft drops, some rock surfing, and generally smooth climbs with mild technical sections.

I've also been testing the bike around the property out here, with some dirt jumps we put together (small) to test the flex and dial in the suspension. I'm really quite impressed.

Off to ride some more tomorrow - I'll leave you with a picture of the steed.

Title: Re: Another Tan Tan FM10
Post by: northup on September 19, 2020, 02:11:01 PM
The one hiccup I'm having is that the derailleur is seated too far away from the sprocket to get the 12th gear. With the low stop all the way out, the derailleur can't reach the 12th gear, so I'm riding 1x11 at the moment. I'm looking into whether that's an issue with the hanger, or if there's something else going on that I can adjust. If anyone has any experience repositioning derailleurs, that would be super helpful - though I'll see what I can find.
Title: Re: Another Tan Tan FM10
Post by: emu26 on September 19, 2020, 03:11:03 PM
Thanks for the updates Northup.

Re your derailleur, a few weeks back I was reading the reviews from the different sellers on Aliexpress and there was a Russian guy complaining about not being able to reach gears as well, he was saying the chainline looked off. English not being his first language it was a little confusing and there is no way to reach him unless you also bought from the same seller but it might be worth trying to find it.  I spoke to Guitsboy about it and he was saying chainline isn't the best but he could reach all of his gears.  I'll see if I can find the other comment.

Did you do boost or non boost frame?
Title: Re: Another Tan Tan FM10
Post by: emu26 on September 19, 2020, 03:23:04 PM
Here https://www.aliexpress.com/item/32890086557.html?spm=a2g0o.store_home.productList_1025045650.subject_2

Read his second comment.

Any chance you can post some pics of the rear so we can see what is going on?

Are you using the LTWOO rear mech and if so, do you have a shimano or sram one you could test with?  I'm wondering if it is a frame issue or a compatibility issue.
Title: Re: Another Tan Tan FM10
Post by: northup on September 20, 2020, 05:28:46 PM
I was able to fix the derailleur and the chainline! I took some things apart and realized 1: I forgot to put the spacer in behind the cassette  :o so that was an easy fix. 2. I have the fovno cranks running a spider adapter to a 104bcd 34t oval chainring. Flipping the chainring to the inside of that stack closer to the frame (rather than on the outside nearer to the pedals) gives an excellent chainline putting me centered on the center cog in the rear cassette. I'll take some pictures of how it's rigged up if that would be helpful to you.

If you had cranks with a gxp chainring and didn't use the adapter, it would put the chain line to far outboard and it would cross/bend pretty hard to reach the big cogs.

I went with the boost frame, and the SRide 12speed derailler with an 11-50t cassette. Just to be clear I can confirm I can now access all the gears smoothly. And that makes me happy.

Note: the rear axle that comes with the bike is trash, and sheared on my when I was installing the rear wheel for the second time. Any old rear axle is better than that one.
Title: Re: Another Tan Tan FM10
Post by: emu26 on September 20, 2020, 05:41:11 PM
Cheers Northup, really glad you got it sorted.

That Russian guy also complained about snapping the rear axle.

Title: Re: Another Tan Tan FM10
Post by: emu26 on September 21, 2020, 03:15:45 PM
Hi Northup, what tires did you end up using and can you take a pick of rear tire clearance please?  I'm wondering if max tire of 2.8 is being conservative and if a 3 would actually fit.

TIA
Title: Re: Another Tan Tan FM10
Post by: emu26 on September 23, 2020, 12:40:09 AM
Hi Northup, did you order the 27.5 version or the 29er version of the frame?

I want to ride 27.5 plus tyres but not sure which of the frame options I should be ordering. 

BTW, just got a new take off DPX2 Kashima 185 55 trunnion mount for $400A, ($286USD) so I have to commit to this frame now.  :)
Title: Re: Another Tan Tan FM10
Post by: northup on September 28, 2020, 07:49:06 AM
Nice price on that shock!! I think you'll like the frame, even with some of the issues we're seeing here. I got the 27.5 version of the frame.

Also - just to note - The crank bolt on the Fovno Phantom cranks sheared off mid ride on me last week. It's thin, cheap metal, so for the record, it's not very durable. A few pedal strikes can weaken it enough to cause issue, and the crank arm just let go while I was pedaling uphill. Thankfully not a disaster that caused injury, but I would be careful if you go that route. There's a reason they are so light...
Title: Re: Another Tan Tan FM10
Post by: emu26 on September 28, 2020, 03:46:40 PM
Cheers mate. Shock was dropped off to my door and it is mint condition.  Hope it rides as good as it looks.

Icyseanfitz had issues with those Fovno cranks as well, he posted about in the last couple of days.  http://chinertown.com/index.php/topic,2959.15.html
Title: Re: Another Tan Tan FM10
Post by: northup on September 29, 2020, 03:29:53 PM
Emu - here is a pic of the rear tire. I think you could comfortably do a 2.8, a 3.0 might be pushing it but depending on your rim, you might be able to squeeze it in. These pics are with a Maxxis DHR2 2.6 (the wide tire version) on a 40mm rim (33.6mm ID). The rim is a light bicycle AM733 if you want to hunt down more specs.

Title: Re: Another Tan Tan FM10
Post by: azmtbkr on November 02, 2020, 08:50:18 PM
Hello All,

I placed an order for an FM10 frame from tantan cycling last week. I am starting to put together a parts list and this thread has been very helpful. I just bought a Fox DXP2 185x55 trunnion shock off pinkbike for $275.

Northup if you are reading this I had some questions for you.

How did those Dairs 29er wheels work out? Are they worth purchasing? I live in Arizona and the trails I ride are very rocky. Is it advisable to have carbon wheels? If not can you (or anyone) recommend any other wheels I should check out?

 It sounds like the Fovno cranks didn't work out very well with the bolt sheering off. Can you recommend any other relatively inexpensive cranks I should look into?

Any other advice that you would have for someone that will be starting an FM10 build? Thanks!
Title: Re: Another Tan Tan FM10
Post by: northup on November 06, 2020, 12:40:19 AM
I've had a lot of questions about the Dairs wheels, so I wanted to post here that... they never showed up :( I'm still trying to figure out what went wrong with that.

On the other hand, the light bicycle AM733s I have are fantastic, and the bitex hubs are the best I've ever had on a bike (but I've never had much top shelf gear, so this whole bike is really a massive upgrade for me).

The Fovno cranks - I did have trouble with them, but I think there may have been some 'operator error' on those, so I'm not convinced the parts are shit, it's possible the shit's on me for that one. I've gotten my hands on a new crank bolt and am going to do some more testing before I call them a waste of money. Hopefully I'll have some updates in the spring.

Have had a blast on the bike though! I think that going with the cheap frame and cheap components all around except for wheels and suspension was the right call, at least for me.
Title: Re: Another Tan Tan FM10
Post by: carbonazza on November 07, 2020, 01:34:11 PM
Quote from: northup on November 06, 2020, 12:40:19 AM
...The Fovno cranks...

Did you try the DUB version or the 24mm one ?
Title: Re: Another Tan Tan FM10
Post by: Icyseanfitz on November 08, 2020, 04:21:44 PM
The crank bolts on the fonvo cranks stripped for me so i had to cut through the axle, metal used was far too soft
Title: Re: Another Tan Tan FM10
Post by: northup on November 09, 2020, 01:01:40 PM
Quote from: carbonazza on November 07, 2020, 01:34:11 PM
Did you try the DUB version or the 24mm one ?

The 24mm version
Title: Re: Another Tan Tan FM10
Post by: northup on November 09, 2020, 01:04:18 PM
Quote from: Icyseanfitz on November 08, 2020, 04:21:44 PM
The crank bolts on the fonvo cranks stripped for me so i had to cut through the axle, metal used was far too soft

Good to know. I may go with the zrace blade as a replacement, the one with the steel spindle.
Title: Re: Another Tan Tan FM10
Post by: d3sertcr4wlr on May 23, 2021, 05:59:53 PM
Quote from: Icyseanfitz on July 08, 2020, 06:03:03 AM
After buying a set of the same brakes, curious as to wether they are any good.

I’m also curious how these shimano clones turned out??
Title: Re: Another Tan Tan FM10
Post by: northup on August 09, 2021, 11:07:22 AM
Quote from: d3sertcr4wlr on May 23, 2021, 05:59:53 PM
I’m also curious how these shimano clones turned out??

They are awesome! A bit challenging to bleed, but they've been flawless and 0 maintenance for a year or so. I bought another set for another build.
Title: Re: Another Tan Tan FM10
Post by: Snacks on August 09, 2021, 02:44:22 PM
Quote from: northup on August 09, 2021, 11:07:22 AM
They are awesome! A bit challenging to bleed, but they've been flawless and 0 maintenance for a year or so. I bought another set for another build.

That's good to hear! I've been eyeing these as well . Just curious what kind of riding you're doing with them. Would you say they'd be good for AM or Enduro?
Title: Re: Another Tan Tan FM10
Post by: northup on August 19, 2021, 07:41:59 AM
Quote from: Snacks on August 09, 2021, 02:44:22 PM
That's good to hear! I've been eyeing these as well . Just curious what kind of riding you're doing with them. Would you say they'd be good for AM or Enduro?

I don't ride that aggressively (yet) as I'm out on the east coast USA. I'm moving to Calgary soon so I expect to test them out on some longer rides/longer sustained descents. They had no issue on a trip to Colorado for some half day rides with ~1000ft elevation. I don't expect they're the best, but I'll update if they have any issues.
Title: Re: Another Tan Tan FM10
Post by: northup on August 19, 2021, 07:44:21 AM
I switched out the fovno cranks for a set of ZRace Blade cranks (with the steel spindle).  Two reasons, one, the BB is low on this bike running 27.5s so I need to find a way to reduce pedal strike. So far so good. The other is the Fovno aluminum spindle gave me a scare early on, and although I was able to solve the problem with those cranks, I'd rather have some extra durability under my feet for the the (hopefully small but unmeasured) weight penalty.
Title: Re: Another Tan Tan FM10
Post by: emu26 on August 19, 2021, 04:37:10 PM
Quote from: northup on August 19, 2021, 07:44:21 AM
I switched out the fovno cranks for a set of ZRace Blade cranks (with the steel spindle).  Two reasons, one, the BB is low on this bike running 27.5s so I need to find a way to reduce pedal strike. So far so good. The other is the Fovno aluminum spindle gave me a scare early on, and although I was able to solve the problem with those cranks, I'd rather have some extra durability under my feet for the the (hopefully small but unmeasured) weight penalty.

What length cranks did you go to?

I'm at 170s and still get pedal strike if I'm not concentrating and that is rockier sections of fire trail, not rock gardens or anything overly technical. Am about to pull the trigger on a SR Suntour Durolux EQ 29er @ 150 and 29er wheels but am concerned that at 570 A2C the fork will slack out the front too much. I currently have a Rhythm 27.5 with a crown race spacer in it.  Have looked into angleset headsets but because the cups are bonded into the frame I haven't been able to find one.