Chinertown
Chinese Carbon MTB => 29+ & 27+ => Topic started by: cwareham on August 22, 2017, 12:51:29 PM
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...and a set of wheels with DTSwiss 350 Hubs and HR940C 40mm width rims in 29". Frame Should ship in a day or so, wheels in a few weeks. Looking for fork options for a 29+ build, will probably opt to do a used Fox 34 or Rockshox Pike in 120MM. The range of info on what works for a 29+ setup is a bit confusing :^). Can anyone here confirm based on personal experience the following:
".....the only difference between the Boost 29 and the Boost 27.5+ is that the + is wider. The tire clearance and A-C is exactly the same. I personally prefer the Boost 29 because it is plenty wide enough for 3.0" tires."
Thanks, and looking forward to the build.
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After some research the only fork that matched 3" 29+ tires with a boost 110mm hub was the Pike:
https://r2-bike.com/ROCK-SHOX-Suspension-Fork-29-PIKE-RCT3-DebonAir-SA-120-mm-BOOST-tapered-black-2018_1
I do not remember why but the Reba, that was less expensive didn't work.
This list was interesting although it dates back to 2016.
https://fat-bike.com/2016/04/fat-camp-show-12-plus-bike-talk-with-ken-and-andy/
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One of the tech's at the LBS has a Trek Stache with a Reba 29/27+ on it. It's at 140mm of travel and running the 29x3 Chupacabra on Bontrager Line Plus (39mm inner) wheels.
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Thanks fellas.
Frame arrived yesterday, after shipping on the 23rd. Was packed really well, and the frame is *flawless.* I'm really impressed. Managing file size to post photos is a pain. Here's a link to the unboxing pics. https://photos.app.goo.gl/PTrEepQeP5n40QRl1
Build List
CS 496 Frame
Fork - Fox float 34 27.5+
Wheels 40MM carbon rims from carbon speed + DT350S + spokes
Cassette - m8000 42 tooth
XT boost 175mm Cranks
30 Tooth raceface chainring
XT 11 sp Derailleur
XT 11 speed Shifter
XT brakes
XT Rotors
XT Chain
tires - Trax Fatty
Bars - Renthal fatbar carbon lite 10cm rise
Seatpost - Fox transfer 31.6 internal dropper 125MM
Wolf Tooth lever for dropper post
Saddle - WTB Volt Pro
Stem - Race Face XXMM
headset - neco from Peter
Bottom bracket Shimano bb94 (bb92)
Cabling
Egg Beater 1 pedals
Everything but the wheels should be arriving today.
Those links on fork options got me pointed in the right direction. I think the general consensus is that in the absence of a 29+ fork, the 27.5+ works with a really wide range of tires, even well beyond 3" wide. I ended up going with a Fox 34 27.5+ with 140mm of travel. I'm not sure I'll want that much travel once I'm dialed in, but the switch to 130 or 120 should be achievable for pretty reasonable expenditure of money and effort.
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Wheels just arrived, they look great. Very well packed, beautifully finished, can't believe these arrive in a week from mainland China.
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Bike is together and fully shaken out. CS496 frame, Peter's 40mm rims with DTS350 hubs. Went with Renthal Fatbar Lite, Fox 34 140mm 27plus fork, Fox transfer dropper, XT brakes and drivetrain. Bike weighs 24 lbs on the nose sans pedals. That's with 29x3" (VeeTrax Fatties) tires, each weighing ~1.7 lbs. Been through the local trails, and flogged it at the Deer Valley lift-served trails on Sunday. That wasn't just big flowy stuff, it was also some of the burliest, technical, rocky, rooty descents I've ever done.
Bike is performing *flawlessly* so far. I would absolutely do this again, and would go straight back to Peter. Can't recommend it enough.
Pic: https://photos.app.goo.gl/13tIXNt6koqLmFVy1
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Hey There - Awesome build. I'm new and have a couple questions. I sent a note off to Peter and am hoping to replicate your setup, to a degree, mainly with different suspension (if possible).
Questions:
- What race face chainring did you get to work with the XT crank? I can only find Shimano compatible.
- Do you think the manitou mattoc fork would work with this setup? https://www.manitoumtb.com/products/forks/mattoc/
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What race face chainring did you get to work with the XT crank? I can only find Shimano compatible. [/li][/list]
Do you know the brand Garbaruk?
These are great: https://r2-bike.com/GARBARUK-Chainring-Round-1-speed-narrow-wide-BCD-96-Shimano-XT-M8000-Crank-34-teeth-black
If you like oval: https://r2-bike.com/GARBARUK-Chainring-Melon-oval-1-fach-narrow-wide-LK-96-Shimano-XT-M-8000-Kurbel
They sell direct too: http://garbaruk.com/products/chainrings/round/bcd/96-asymm.html but are slightly more expensive
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What race face chainring did you get to work with the XT crank? I can only find Shimano compatible. [/li][/list]
Do you know the brand Garbaruk?
These are great: https://r2-bike.com/GARBARUK-Chainring-Round-1-speed-narrow-wide-BCD-96-Shimano-XT-M8000-Crank-34-teeth-black
If you like oval: https://r2-bike.com/GARBARUK-Chainring-Melon-oval-1-fach-narrow-wide-LK-96-Shimano-XT-M-8000-Kurbel
They sell direct too: http://garbaruk.com/products/chainrings/round/bcd/96-asymm.html but are slightly more expensive
Cool. I'll check Garbaruk out and let you know. If their shipping isnt too much to get to US, I'll probably go that route.
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I was all set to go.. Had my lists all set to purchase and I found out this bike isnt available right now in a 19".
What now!? Ha. I had my heart set on a + bike.
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Do you guys think I could make a 17" work? I'm 5'11" tall and about a 33.5" inseam.
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- What race face chainring did you get to work with the XT crank? I can only find Shimano compatible.
- Do you think the manitou mattoc fork would work with this setup? https://www.manitoumtb.com/products/forks/mattoc/
Sorry for the delay, I'm not getting email updates. I ended up with Shimano chainring, misordered the raceface piece (doesn't fit.)
Don't know on the Mattoc; if it works on a Stache it'll work on this frame.
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By way of update, I PR'd most segments on Porcupine Rim in Moab this weekend and it did great. I'm ~230# with a pack, wheels are true, couldn't be happier.
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Congrats !!
Beware! Strava is bad for your mental health :)
By way of update, I PR'd most segments on Porcupine Rim in Moab this weekend and it did great. I'm ~230# with a pack, wheels are true, couldn't be happier.
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Looks like a really nice build. I checked out those links are the beginning of thread, will come in handy! Still can't decide between this hardtail it there cs-fs27 for a 27.5+.. oh, the choices! I also noticed you have a 30t chaining, will a 32t it bigger fits?
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I don't think you'd run into interference with a big chainring. I run the 30t because I'm a wimp, not because of fitment.
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@cwareham, I see you had an XT "boost" crankset. I'm not familiar with it but guessing it has something to do with aligning the chain with the cogs on a boosted rear hub. Is this different from the regular XT crankset, I mean physically? Also, can I just get the regular XT and some spacers to compensate for the rear boost hubs?
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It is to align with the boost spacing in the rear. I can't remember the dimension differences between boost and non boost crank, but I wouldn't count on a mismatched drivetrain working well without it unless someone markets a specific solution for adapting a non boost crank to a boost application. I'm not tuned in well enough to know off hand.
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Boost and Non-Boost cranksets just differ in the offset of the chain rings. It really won't matter too much as long as you have clearance between the ring and frame. In the Sram offerings, there is a 3mm difference between the two. Also, mix matching drivetrain is fine as long as the shifter and derailleur match. My wife's SC Tallboy 3 has a Sram crank with non-boost direct mount chainring, Shimano XT shifter, Shimano XT rear derailleur, and a Sram XG-1180 cassette. The shifting is excellent and precise.
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Thanks for the explanation guys. That helps a lot.
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Would this be considered a more hardcore hardtail like the Kona Honzo?
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What bottom bracket did you use? I'm looking to get this frame but really don't want to own a bike with press fit bottom bracket. I had to get a wheels mfg threded press fit on my fatbike to finally get rid of all the creaking. I wish this frame came with a threaded bb option.
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Shimano XTR BB94, which inexplicibly a BB92 BB. FWIW, after a few hundred miles on the bike, I like it. Simple, light, and so far, quiet.
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Does this frame have internal routing for stealth dropper post?
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Yes.
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Nice build;
I just finished a similar bike; went with the Velobuild version of the frame (looks basically the same), XT 1 x 11 groupset, rockshox Reba fork, Farsport carbon wheels with 40mm rims, 2.6" tires, KS Integra dropper seat. Just about 10kgs total build. I had hoped for lighter but the frame came in at 1500g rather than the advertised 1100g.
Only had it out for a couple of rides but loving it so far , the slack head angle (67.5) gives a lot of confidence on the descents, yet it climbs really well. This one was for my wife and considering building another for me.
Did you know what your frame weighed in at?
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Looks awesome!
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Definitely a nice looking plus bike apctjb, you should try out some 3.0 29+ tires (Chupacabras), it will make the bike feel like it can roll over anything.
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SWEET looking!
What size did you get?
I want to get one of these frames, but the short front-center measurement has me confused if I should go 17.5 or 18.5 for my 5'10" height.
Thanks!
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I want to get one of these frames, but the short front-center measurement has me confused if I should go 17.5 or 18.5 for my 5'10" height.
At 5-10 you could go either way. My wife's is a 17.5 and it feels a tad short in the cockpit for me at 5-11, but she has a 40mm stem. With a longer stem it could work fine. I am ordering a 18.5 for me.
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@apctjb, what height is your wife?
Also, what's the biggest chainring this frame can handle?
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@apctjb, what height is your wife?
Also, what's the biggest chainring this frame can handle?
5'-7", Not sure on max chainring. The chainstay comes in about 7" above the bottom bracket with gives tons of clearance for chainring. The limiting factor might be when running 3" tires; which would reduce max chainring diameter to ~8". Still huge.
Note, even though I am running boost wheels I did not bother with a boost crank. Chain alignment is fine, shifting precise and I can back pedal when in largest rear cog (46t) and the chain does not drop down.
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Love this thread, I'm researching frames and wheels for my first 29+ build and this has great info on both.
BTW, does the CS-496 include necessary parts like the thru-axle, hanger, headset, seatpost clamp? I have a Fox 34 Rythmn, SLX groupset, and cockpit already lined up. Also, approximately what are these frames going for?
Thanks
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@Upstatesc-rider, the CS-496 comes with the thru axle and hanger. Headset, seatpost clamp and extra hanger are options you can get from Peter.
The listed price is US$445, excluding fork and shipping.
You can get more info here... http://www.xmcarbonspeed.cn (http://www.xmcarbonspeed.cn)
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Love this thread, I'm researching frames and wheels for my first 29+ build and this has great info on both.
BTW, does the CS-496 include necessary parts like the thru-axle, hanger, headset, seatpost clamp? I have a Fox 34 Rythmn, SLX groupset, and cockpit already lined up. Also, approximately what are these frames going for?
Thanks
I have the RM950C rims from Peter laced up to Hope Pro4 hubs with DT Aerolite spokes on my plus bike. The wheels have been perfect with the Bontrager Chupacabra 29x3.0 tires. They weigh in just over 1800 grams which isn't too bad for a 43mm inner width wheel. Some centerlock DT hubs would drop the weight some though. I got my plus frame from a different vendor before Peter had the 496 available so I can't comment on the frame but everything else I've gotten from Peter has been stellar.
http://www.xmcarbonspeed.com/Productinfo.asp?f=1369
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@Upstatesc-rider, the CS-496 comes with the thru axle and hanger. Headset, seatpost clamp and extra hanger are options you can get from Peter.
The listed price is US$445, excluding fork and shipping.
You can get more info here... http://www.xmcarbonspeed.cn (http://www.xmcarbonspeed.cn)
Love this thread, I'm researching frames and wheels for my first 29+ build and this has great info on both.
BTW, does the CS-496 include necessary parts like the thru-axle, hanger, headset, seatpost clamp? I have a Fox 34 Rythmn, SLX groupset, and cockpit already lined up. Also, approximately what are these frames going for?
Thanks
I have the RM950C rims from Peter laced up to Hope Pro4 hubs with DT Aerolite spokes on my plus bike. The wheels have been perfect with the Bontrager Chupacabra 29x3.0 tires. They weigh in just over 1800 grams which isn't too bad for a 43mm inner width wheel. Some centerlock DT hubs would drop the weight some though. I got my plus frame from a different vendor before Peter had the 496 available so I can't comment on the frame but everything else I've gotten from Peter has been stellar.
http://www.xmcarbonspeed.com/Productinfo.asp?f=1369
Thanks guys, appreciate the info.