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Hot Topic (More than 10 Replies) 29er Chinese Carbon Wheels (Read 1210 times)
Enoch
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29er Chinese Carbon Wheels
09/18/12 at 11:56pm
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My first foray into Chinese carbon rims didn't go so well. I ordered some 20 mm road rims that ended up cracking before I could get 105kgf of tension on them. Light Bicyle did warranty the rims and allowed me to switch the rims for some wide 29er rims for a $60 fee plus another $50 shipping.

My rims arrived today so I built them up to see how these would be.  I got to 120kgf with no issues or cracking noises. The finish is not quite as perfect as some of the more expensive carbon rims but, they are pretty round and built up nicely. When they said they were wide, they were not joking. THese things are over 30mm wide but are just as light as some of the Crest rims. Mine were 378 and 412 grams. Unfortunately it may be 3-4 more weeks before I get to ride them.

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« Last Edit: 08/14/13 at 3:57pm by Enoch »  
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PainkillerSPE
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Re: 29er Chinese Carbon WHeels
Reply #1 - 09/19/12 at 12:06am
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Nice.  My light bike carbon wheels have been great so far.
  
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rob wrote on 05/01/12 at 6:01pm:
Shearing the shaft member after a hard ride is acceptable in my book.
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Re: 29er Chinese Carbon WHeels
Reply #2 - 09/19/12 at 12:20am
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Might have to try a set.
  
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Re: 29er Chinese Carbon WHeels
Reply #3 - 09/19/12 at 12:39pm
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Enoch wrote on 09/18/12 at 11:56pm:
My first foray into Chinese carbon rims didn't go so well. I ordered some 20 mm road rims that ended up cracking before I could get 105kgf of tension on them. Light Bicyle did warranty the rims and allowed me to switch the rims for some wide 29er rims for a $60 fee plus another $50 shipping.

My rims arrived today so I built them up to see how these would be.  I got to 120kgf with no issues or cracking noises. The finish is not quite as perfect as some of the more expensive carbon rims but, they are pretty round and built up nicely. When they said they were wide, they were not joking. THese things are over 30mm wide but are just as light as some of the Crest rims. Mine were 378 and 412 grams. Unfortunately it may be 3-4 more weeks before I get to ride them.

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And a Crest rim would be about ready to fold at that tension, too.  Crests tend to get weird around 100 to 105.  Did you enjoy the sound effects as you aired up the tire for the first time? Wink
  
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rob1035
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Re: 29er Chinese Carbon WHeels
Reply #4 - 09/19/12 at 1:04pm
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J- 
Did you set them up tubeless?
  
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Enoch
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Re: 29er Chinese Carbon WHeels
Reply #5 - 09/19/12 at 4:43pm
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These did not make any strange noises during the build process, or when I air them up to 50lbs.

I did set them up to be run tubless, but I have a tube in them right now pressing the tape down.

I think these are a lighter, stronger option to Stans wheels. Unlike a aluminum wheel, they will not bend if tweeked sideways. It is a hit and miss thing on quality control with Chinese venders. If you have a warranty issue, get ready for a long drawn out process that will cost you a few more dollars.
  
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Re: 29er Chinese Carbon WHeels
Reply #6 - 09/19/12 at 5:43pm
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Enoch wrote on 09/19/12 at 4:43pm:
These did not make any strange noises during the build process, or when I air them up to 50lbs.

I did set them up to be run tubless, but I have a tube in them right now pressing the tape down.

I think these are a lighter, stronger option to Stans wheels. Unlike a aluminum wheel, they will not bend if tweeked sideways. It is a hit and miss thing on quality control with Chinese venders. If you have a warranty issue, get ready for a long drawn out process that will cost you a few more dollars.


Painkiller's made awful noises when airing them up with a tube to press down the rim tape.  Thought the dang bead was going to blow off. Tongue  I'v had new Zipp rims make the same noise.  I just hold the wheel well away from me when I air them up!  Shocked
  
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Re: 29er Chinese Carbon WHeels
Reply #7 - 09/19/12 at 6:55pm
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The Cycle Path wrote on 09/19/12 at 5:43pm:


Painkiller's made awful noises when airing them up with a tube to press down the rim tape.  Thought the dang bead was going to blow off. Tongue  I'v had new Zipp rims make the same noise.  I just hold the wheel well away from me when I air them up!  Shocked


What did you do to my wheels Mark  Shocked
  
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rob wrote on 05/01/12 at 6:01pm:
Shearing the shaft member after a hard ride is acceptable in my book.
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twinsdad
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Re: 29er Chinese Carbon WHeels
Reply #8 - 09/19/12 at 9:22pm
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Couple years ago I was mounting a SB8 in the living room (tubeless)...Tire failed @ the sidewall and blew of the rim... Spraying Stan's all over the place, including on the new couch.  My wife was super happy!!  It's funny.....Now.  Cool thing is that after about a month there was no more evidence of the Stan's!  Not really relevant but pretty funny Smiley
  
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Re: 29er Chinese Carbon WHeels
Reply #9 - 09/19/12 at 9:37pm
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Do you trust them enough to bomb down No Name or Raiders on them? Or just enough to ride around Clt trails?
  
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Enoch
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Re: 29er Chinese Carbon WHeels
Reply #10 - 09/20/12 at 1:09am
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hikenbike wrote on 09/19/12 at 9:37pm:
Do you trust them enough to bomb down No Name or Raiders on them? Or just enough to ride around Clt trails?



Yeah, they'll be just fine.  You can tell alot about a rim when you are  building them and these seem pretty rigid. I have no reservations about  using them on any trail in the mtns. THe only reported flaws some people have had is cracking around the spoke holes, which will show up imediately. No reported catastropic failures. A few peeps have put cracks in them from too low of pressure but even then they amitted a aluminum rim would have dinged just the same. I'm going to ride 'em like I hate 'em.
  
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Re: 29er Chinese Carbon WHeels
Reply #11 - 12/07/12 at 5:56pm
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J-
Any long term issues so far?
  
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Enoch
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Re: 29er Chinese Carbon WHeels
Reply #12 - 12/07/12 at 7:33pm
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I've got about a dozen rides on them. I put a few scratches on the rear but they seem to be holding up just fine. I slamed the front in a dip with a rock in the bottom at the Rocky River trail . I hit so hard it bottomed my fork and burped the tire, but no issue so far.
  
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Re: 29er Chinese Carbon WHeels
Reply #13 - 01/05/13 at 1:03pm
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Okay, you've got another month on them.  Broken them yet?
  
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Enoch
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Re: 29er Chinese Carbon WHeels
Reply #14 - 01/05/13 at 1:40pm
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I'm still pretty happy with them. I would build another set if I need some rims. I do recommend 2 layers of tape or use the Bonti rim strips when setting them up tubeless. I also do not recommend going with thier lighter weight version unless your under 150. Get the 430 gram + ones. It is not because the light ones are flexy, it is just to get more material in the bead area in case you bottom out on a rock
  
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Re: 29er Chinese Carbon WHeels
Reply #15 - 01/05/13 at 2:15pm
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Critical.  I almost went with Chinese carbons for my new 29er build, but there's a 20+day wait for them.   

I have been using the 26 inch version of these rims since September and they have been amazing.  The wheels have survived hard racing and riding and seen action in Pisgah.  Cove creek, Butter gap, and Farlow Gap.  Still true as the day they were built.   

I will echo what Jerry said.  Use two layers of stans or one layer of the wide specialized blue tape.  I had issues with the valves leaking using one layer of stans.  Tires are also hesitant to seat unless you inflate them to 60 PSI tubeless  Shocked

Overall I'm extremely happy with Light Bicycle rims.
  
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rob wrote on 05/01/12 at 6:01pm:
Shearing the shaft member after a hard ride is acceptable in my book.
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Enoch
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Re: 29er Chinese Carbon Wheels
Reply #16 - 08/14/13 at 4:12pm
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Long term  RIM report. 

I'm on my second front tire, and third rear tire. Thrown a big stick in them hard enough to lock the rear wheel down , picked up another stick in them and broke a derailer and hanger, had one spoke break at the threads while JRA on the fire road @ Sherman???,  have about a 1/2 dozen deep rock gouges in them, bottomed out the rear tire from low pressure at least a dozen times, burped the front bad 3 times, I've put 3 sets of rear bearings in the Hope  hub, front  Hope hub bearings are crunchy now.  The Rims are still rolling just fine, no cracks around the spoke holes, no cracks at the bead. I have not babied these, anyone that rides with me knows I hit/jump just about everything out there. I would like to build me another set on a different set of hubs. So far they have been well worth the money.
« Last Edit: 08/15/13 at 9:47pm by Enoch »  
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Re: 29er Chinese Carbon Wheels
Reply #17 - 01/04/14 at 1:36am
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I just ordered a few.  What nipples and spokes recommendations do you have? Anything else special I should take care of with these rims?  Thanks
  
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Enoch
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Re: 29er Chinese Carbon Wheels
Reply #18 - 01/04/14 at 1:40am
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If you want it 100% correct, I recomend ordering the spokes after you measure the rim. ERD can fluctuate on these rims.
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Re: 29er Chinese Carbon Wheels
Reply #19 - 01/04/14 at 2:00am
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Enoch wrote on 01/04/14 at 1:40am:
If you want it 100% correct, I recomend ordering the spokes after you measure the rim. ERD can fluctuate on these rims.

Yes they can. Just built another set for a customer and they were off 1-2mm from advertised ERD. But honestly, that doesn't make much of an impact on spoke length unless you get shorted. I always round up on my spoke length anyway. I like to get the spoke to the top of the nipple if possible.
  
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Re: 29er Chinese Carbon Wheels
Reply #20 - 01/04/14 at 2:31am
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Not 29er but mmmmmm...
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Re: 29er Chinese Carbon Wheels
Reply #21 - 01/09/14 at 8:49pm
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If these can withstand trail abuse I might try dh abuse next.
  
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