Chinertown
Chinese Carbon MTB => 29er => Topic started by: Kommandant33 on July 28, 2024, 12:48:41 AM
-
Last year, Dangerholm showed off his "Super Gravel" Scott Scale RC build - a gorgeous Porsche Forest Green with matte gold accessorized fully rigid flat bar gravel bike. (https://www.scott-sports.com/au/en/news/bike/dangerholm-scale-rc-super-gravel)
This year, Scott have announced that they are making their own version of the bike - the Scott Scale GR. (https://bikepacking.com/news/scott-scale-gr-rc/)
Now that I have completed my first Chinese Carbon build for my daughter (http://chinertown.com/index.php/topic,4909.0.html), I think it is my turn - and the above builds have inspired me.
I currently ride a Marin DSX 2 (https://www.marinbikes.com/au/bikes/2023-dsx-2#specifications) flat bar gravel bike. It has served me VERY well. It has handled everything I ave thrown at it from short rides with the family around the neighbourhood, to long distanced rides to mountain biking tracks in the hills and back home to the 'burbs. In ~3500km all that's been needed is the rear wheel to be rebuilt with a stronger rim (which is expected with how hard I ride it) and a few sets of tires.
What I like about it:
- 42 Tooth Chainring/10-51 Cassette
- versatility
- Easy to work on
What I don't like about it:
- It's a bit heavy
- XL frame size slightly too small for me
- Not too exciting to look at
About me: I am a bigger rider being 196cm tall and ~110kg. I ride and XL frame, and even then I find the DSX 2 a bit small for me. I ride my bike just about every day, and love learning new skills/how to do things myself.
My plan: My wife, daughter and I all ride bikes. My daughter's bike build I have covered on the forum - I will build a similar one for my wife soon, and I have a gravel bike and a dual suspension bike. Now that my daughter is on her 29er, I want all 3 of us to have 29ers with 10-51 12speed so all our wheels can be interchangeable.
Komm's Super Gravel bike build
(please chime in with any suggestions)
Fully rigid carbon boost frame and fork Super Gravel bike.
Frame:
FM1306 (https://www.flybike-asia.com/product/260.html)
Pro: Great geometry. Available in XL size. Have dealt with Wing at Carbonda with great success.
Con: Expensive (from Carbonda), Max chainring size 36T
Spcycle T1000 (https://www.sp-cycle.com/Spcycle-2023-New-T1000-Carbon-Mountain-Bike-Frame-UDH-Hanger-12x148mm-Boost-Full-Internal-Routing-29er-MTB-Carbon-Frame-p5026610.html)
Pro: Very similar to the Scott Scale frame
Con: Only available in S, M, L (I will check the geo chart and compare the L to other XL frames)
Fork
Carbonda CFO 496 - Rigid boost carbon fork
Wheels
Elite Wheels SLR-MTB 29er (https://www.aliexpress.com/item/1005001626363184.html?spm=a2g0o.productlist.main.1.1aeeTwYtTwYtUg&algo_pvid=c0d8a498-0f8e-41df-b627-2ec329ae7bf8&algo_exp_id=c0d8a498-0f8e-41df-b627-2ec329ae7bf8-0&pdp_npi=4%40dis%21AUD%211091.29%21666.67%21%21%21704.51%21430.38%21%402103246417221446493608292e33c0%2112000036637859132%21sea%21AU%214168771240%21X&curPageLogUid=LYeJ3HBOpHbK&utparam-url=scene%3Asearch%7Cquery_from%3A)
Tires
Vittoria Terreno XC Race (https://int.vittoria.com/products/terreno-xc-race)
Drivetrain
I will stick with a Shimano 12 speed 10-51. Cranks/chainring will be decided when we know the limitations of the frame, but by the looks of things I won't be able to stick with a 42t chainring on a boost hardtail bike.
Brakes
I would love to try out some Lewisbike brakes, but they are so expensive when I can get light weight Shimano XT brakes for less!
Cockpit
TBA - would love some guidance
Seatpost/Saddle
TBA - I would probably go for a dropper post.
Any advice from the esteemed Chinertown crew would be great to help build a strong but light Super Gravel bike!
Komm
-
I have the Scott, I think it will be definitely too small for you; mine is L and I am 183cm, it fits me.
Chainring is definitely limited for this bike.
-
I've been very happy with this Spcycle frame I purchased about 3 years ago. I believe it is lighter than the Spcycle version you posted.
https://www.sp-cycle.com/2022-new-hardtail-single-speed-crank-29er-mountain-bike-frame-bsa-148mm-boost-29-full-carbon-mtb-bicycle-frame-p3650491.html
-
My last " Monstergravel"
SP-M05
7,8 kg in size "L"
-
What's the max chainring on the M05. Any chance of 40-44T? Or their 36T claim is accurate?
-
I don't have the M05 frame, but as far as I remember some builds the biggest was 38T with boost chainline (52mm).
Maybe someone who ride it can tell. The Airwolf YFM-026 is hard to beat with 42-44T, but the HA is 69.5
-
My last " Monstergravel"
SP-M05
7,8 kg in size "L"
Great build, very similar to my dream bike:
Black layout, no logo, oval chainring, Continental tyres.. top!
Where did you buy the rigid fork ?
Thanks.
-
I don't have the M05 frame, but as far as I remember some builds the biggest was 38T with boost chainline (52mm).
Maybe someone who ride it can tell. The Airwolf YFM-026 is hard to beat with 42-44T, but the HA is 69.5
Yeah I've looked at it. Ideally HTA would be a bit slacker, but it's not a disaster as I'd use it as a drop bar gravel bike. Slack STA is more of a pain ... though again that can be remedied with a Fair Bicycle adapter. Also 10mm less BB drop than most similar frames is definitely not a positive for most use cases for this frame - bike touring excepted.
But I really wish someone would make one of the modern 67-68 HTA and 76 STA hardtails with capacity for a 44 or 46T and 100mm fork, super deep profile head tube, and IS52/IS52. It wouldn't be particularly difficult to do, with some shaping of the DS chainstay. There are so many scale clones or inspired frames, but none with bigger clearance.
-
Great build, very similar to my dream bike:
Black layout, no logo, oval chainring, Continental tyres.. top!
Where did you buy the rigid fork ?
Thanks.
Thank's
I ordered the fork (SP-MF01) at the Spycycle Official Store.
-
This is exactly the build I'm hoping to do. But I was hoping to find a frame with headset routing. I know everyone hates it, but the clean look is my preference. I've had it now for 18 months on my Scott Spark and it's been no trouble at all.
-
The sp cycle copy of the scale is headsets routing
-
The sp cycle copy of the scale is headsets routing
But unfortunately sweet FA re: chainring clearance.
-
I just received my 0 offset chainring, should fit it this weekend so I’ll get better idea on frame chainstay clearance
-
So I fitted new chainring wit 0mm offset, it definitely moved away from the frame and chain still stay on (previous 0mm was dropping the chain non stop). I for sure can support more than the 32 I am running, 40, I wouldn’t bet on it. If someone has a 40 and wants to try before buying the frame, send it to me for test fitting ;)
-
So I fitted new chainring wit 0mm offset, it definitely moved away from the frame and chain still stay on (previous 0mm was dropping the chain non stop). I for sure can support more than the 32 I am running, 40, I wouldn’t bet on it. If someone has a 40 and wants to try before buying the frame, send it to me for test fitting ;)
So 34 oval or 36 round, maybe.
-
I am pretty sure 36 would fit. Travelling right now but I’ll try to make measurements to confirm
-
My brother and I did something similar. Mine is the pinkish one with drop bars, his is the white one with flat bars.
Not the greatest picture, but it's the only one I have of my brother's flat bar one. It was taken at the end of a 200km MTB/gravel race that turned out to be a mudfest.
We used the Airwolf YFM026 with the Airwolf fork. The Airwolf fork actually has a 480mm A-C length, which steepens the HTA a bit more, and also steepens the STA a small amount. The steep HTA is fine for gravel riding/racing (and beachracing), and we both run the saddle all the way forward on the rails with a zero setback seatpost.
Regarding the chainring size. The white bike has a 42-tooth ring on a standard boost crankset. It's the biggest you can fit without altering the chainline.
-
My brother and I did something similar. Mine is the pinkish one with drop bars, his is the white one with flat bars.
Not the greatest picture, but it's the only one I have of my brother's flat bar one. It was taken at the end of a 200km MTB/gravel race that turned out to be a mudfest.
We used the Airwolf YFM026 with the Airwolf fork. The Airwolf fork actually has a 480mm A-C length, which steepens the HTA a bit more, and also steepens the STA a small amount. The steep HTA is fine for gravel riding/racing (and beachracing), and we both run the saddle all the way forward on the rails with a zero setback seatpost.
Regarding the chainring size. The white bike has a 42-tooth ring on a standard boost crankset. It's the biggest you can fit without altering the chainline.
So that's 52mm boost with +3 offset fits a 42T? Presumably 46T will fit with 0mm offset? If I could fit a 44T oval without altering the chainline, that would be ideal.
I'm hoping the new Spark Gravel RC will have generous chainring clearance, which will push the copy cats to do the same.
-
So that's 52mm boost with +3 offset fits a 42T? Presumably 46T will fit with 0mm offset? If I could fit a 44T oval without altering the chainline, that would be ideal.
I'm hoping the new Spark Gravel RC will have generous chainring clearance, which will push the copy cats to do the same.
I had to look this up, so bear with me here. I don't really know a lot about all the different chainlines and offsets.
It's a boost frameset, with a PF30 bottom bracket. This came included with a standard drive-side spacer we used.
Then it's a boost crankset from Ali. The Senicx FM2 with DUB-spindle. So a standard boost crankset I suppose?
The spider is a Xcadey power meter (the 3-bolt SRAM version, gen2). This is the information according to their website:
"The power meter is designed for a boost chainline and can be adjusted to a standard chainline using a 3mm spacer."
We didn't use any extra spacers so the spider is a +3mm offset, and mounted a Deckas 104BCD chainring, this doesn't have any additional offset.
So if I'm right this just equates to boost with a +3mm offset? So you could fit a bigger chainring if you don't have the +3mm offset in the chainring or spider.
This weekend I can take some pictures of the clearance of the chainrings on both bikes.
-
My brother and I did something similar. Mine is the pinkish one with drop bars, his is the white one with flat bars.
Not the greatest picture, but it's the only one I have of my brother's flat bar one. It was taken at the end of a 200km MTB/gravel race that turned out to be a mudfest.
We used the Airwolf YFM026 with the Airwolf fork. The Airwolf fork actually has a 480mm A-C length, which steepens the HTA a bit more, and also steepens the STA a small amount. The steep HTA is fine for gravel riding/racing (and beachracing), and we both run the saddle all the way forward on the rails with a zero setback seatpost.
Regarding the chainring size. The white bike has a 42-tooth ring on a standard boost crankset. It's the biggest you can fit without altering the chainline.
These look great. Can I ask about sizing please, What size is frame vs what youd normally run on a MTB?
I run a L Carbon FM936, and a 58cm Cervelo Aspero. I want to build a gravel Scott scale, but don’t know if I should go XL or l. The Scale XL has the same reach as the FM936. The L is 3cm shorter.
-
These look great. Can I ask about sizing please, What size is frame vs what youd normally run on a MTB?
I run a L Carbon FM936, and a 58cm Cervelo Aspero. I want to build a gravel Scott scale, but don’t know if I should go XL or l. The Scale XL has the same reach as the FM936. The L is 3cm shorter.
The XL will have absolutely massive reach for a gravel drop bar bike ... unless you're enormous, or very high on the ape index, I doubt you'd be able to cope with it.
-
These look great. Can I ask about sizing please, What size is frame vs what youd normally run on a MTB?
I run a L Carbon FM936, and a 58cm Cervelo Aspero. I want to build a gravel Scott scale, but don’t know if I should go XL or l. The Scale XL has the same reach as the FM936. The L is 3cm shorter.
We are both 184cm (6ft), so pretty tall. My road bike is a 56cm, but has a long 120mm stem. MTB is a Large Cannondale Scalpel.
The Airwolf is a Large, but I considered a medium for a long time because of the added reach of the drop bars. Eventually, I did decide to go for a Large, mainly because of the seat tube length. The medium would have A LOT of seatpost sticking out.
I then used https://bike-stats.de/en/ (https://bike-stats.de/en/) to determine stem length, mainly checking against my road bike fit. Settled on a 70mm stem, and looked out for the shortest reach handlebars I could find. In the end, the position is a bit longer, but higher than my road bike. Took about 5 rides to get used to.
-
We are both 184cm (6ft), so pretty tall. My road bike is a 56cm, but has a long 120mm stem. MTB is a Large Cannondale Scalpel.
The Airwolf is a Large, but I considered a medium for a long time because of the added reach of the drop bars. Eventually, I did decide to go for a Large, mainly because of the seat tube length. The medium would have A LOT of seatpost sticking out.
I then used https://bike-stats.de/en/ (https://bike-stats.de/en/) to determine stem length, mainly checking against my road bike fit. Settled on a 70mm stem, and looked out for the shortest reach handlebars I could find. In the end, the position is a bit longer, but higher than my road bike. Took about 5 rides to get used to.
Thanks for the advice. I’m 185cm. Probably best stick with a large. I’m uncertain about going for a drop bar or not. I might stick with narrow flat and TT bars.
Those are lovely wheels. What rim is it?
-
Thanks for the advice. I’m 185cm. Probably best stick with a large. I’m uncertain about going for a drop bar or not. I might stick with narrow flat and TT bars.
Those are lovely wheels. What rim is it?
Nextie AGX45 gravel rims laced onto boost hubs (done by Nextie). The rims have a 30mm internal width, so I run 2.35" MTB-tires on them for gravel riding.
My bike was mainly inspired by the beachracing guys here in Belgium en The Netherlands but it makes for a great gravel bike in summer aswell. And I'm actually gonna race on it next winter. All the specialist beachracing bikes have very deep (for aero, but that's debatable, it mainly looks good imo) and wide (so you can run the widest slick posible for good flotation on the sand) wheelsets.
This bikeshop, that specializes in beachracing, sells the Airwolf YFM026 under their own name, with their own brand or 9th Wave branded deep and wide wheels.
If you have a look trough their insta, they some super cool build and paintjobs on this frame: https://www.instagram.com/stormbikesnl/ (https://www.instagram.com/stormbikesnl/)
Full list of parts from my build is attached. Build it for under 2000 euros. But with a LTWoo groupset that isn't performing the greatest. Might have to switch it out for a Shimano GRX set.
-
Thank's
I ordered the fork (SP-MF01) at the Spycycle Official Store.
How's that fork holding up? Any issues?