Chinese carbon frame and wheels thread
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Re: Chinese carbon frame and wheels thread
Postby lobstermash » Sat Sep 27, 2014 8:04 am
I was going to go red and black, but with the Tigers' amazing run to make the 8 this year, I had to celebrate (even though they lost the week after I ordered). The colour scheme also makes it look... less Cervelo. I'm just going to have to get some matching kit...
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Re: Chinese carbon frame and wheels thread
Postby lobstermash » Sat Sep 27, 2014 8:08 am
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Re: Chinese carbon frame and wheels thread
Postby rodneycc » Sat Sep 27, 2014 8:26 am
They were always the best looking combos imo.
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Re: Chinese carbon frame and wheels thread
Postby Duck! » Tue Oct 07, 2014 12:56 am
Thinking of getting a set of these rims for the MTB, which I'll build onto XTR hubs. I like the sound of the titanium bead core to help bind it together.
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Re: Chinese carbon frame and wheels thread
Postby Cul » Wed Oct 08, 2014 9:35 am
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Re: Chinese carbon frame and wheels thread
Postby mattwilkinson » Mon Jan 05, 2015 8:33 pm
And after test riding them, both rims seem to pulsate a little, The front is quite bad when coming to a stop, and occurs around the valve hole area.... Is this common and is there any way to fix it? I am using the stock carbon pads
Cheers
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Re: Chinese carbon frame and wheels thread
Postby jules21 » Mon Jan 05, 2015 8:42 pm
it would be unusual for warped rims to cause much pulsating - the brake calipers are designed to move to and fro. but if there is a sudden change in rim 'profile' across the brake track area - that is more likely to cause pulsating as the brake arms can't move quickly enough.
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Re: Chinese carbon frame and wheels thread
Postby mitchy_ » Mon Jan 05, 2015 9:56 pm
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Re: Chinese carbon frame and wheels thread
Postby paulz » Tue Jan 06, 2015 1:29 pm
The build was straight forward with no difficulties encountered.
The frame build appears to be pretty good and it rides really well...better
than I was expecting.
I will be changing this over to di2 over the coming months which will make
this a nice back up bike.
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Re: Chinese carbon frame and wheels thread
Postby mattwilkinson » Tue Jan 06, 2015 7:34 pm
I don't think being out of true would cause it, The tracks look pretty good and they don't seem to be out of true any more than say 1mm or sojules21 wrote:rotate the wheel and watch as the 'suspect' area passes the brake pads. do you notice anything? are there imperfections in the rim surface where it contacts the brake pads?
it would be unusual for warped rims to cause much pulsating - the brake calipers are designed to move to and fro. but if there is a sudden change in rim 'profile' across the brake track area - that is more likely to cause pulsating as the brake arms can't move quickly enough.
I have heard sometimes they don't machine down the valve area enough.. Will go grab some calipers tomorrow to run over them, the company says if the different is under .3mm then they should be fine
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Re: Chinese carbon frame and wheels thread
Postby dmwill » Tue Jan 06, 2015 10:18 pm
Cheap hubs concern me more than anything else. Anyone know of any crowds who build onto decent hubs? Or would I be better off sourcing hubs and rims myself, then getting a LBS to supply spokes and build up?
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Re: Chinese carbon frame and wheels thread
Postby nickobec » Wed Jan 07, 2015 12:54 am
My brakes started pulsing after a couple of thousand ks on my carbon wheels and slowly got worse. A few thousand Ks later I stopped using them, as they were unrideable. The two front wheels, the brake track width was out my more than 1mm, ie 19mm wide brake tracks had at least one spot 20mm wide. The rear wheel which had done almost twice as much mileage was out by close to 2mm. At least two of these spot was near the valve. The rear wheel had three separate spots including the valve.
I found at first I could reduce the pulsing by moving the brake pads down the braking track as far as possible. It just bought me more time.
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Re: Chinese carbon frame and wheels thread
Postby mitchy_ » Wed Jan 07, 2015 11:08 am
most only offer novatec or similar hubs. if you want something else, i'd have them built locally.dmwill wrote:Toying with the idea of a carbon wheelset now.
Cheap hubs concern me more than anything else. Anyone know of any crowds who build onto decent hubs? Or would I be better off sourcing hubs and rims myself, then getting a LBS to supply spokes and build up?
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Re: Chinese carbon frame and wheels thread
Postby Crawf » Wed Jan 07, 2015 3:50 pm
I recall Farsports would build anything you wanted, White Industries, CK...dmwill wrote:Toying with the idea of a carbon wheelset now.
Cheap hubs concern me more than anything else. Anyone know of any crowds who build onto decent hubs? Or would I be better off sourcing hubs and rims myself, then getting a LBS to supply spokes and build up?
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Re: Chinese carbon frame and wheels thread
Postby mattwilkinson » Wed Jan 07, 2015 6:43 pm
Strangely enough rim width seems okay? Seems to be within .1 or .2 of a mm.... And they are not out of true enough to fit a business card in there at all when they are scrubbing the tiniest amount, I'd estimate there to be less than .3 or .4mm of warpnickobec wrote:mattwilkinson check the width of the brake track.
My brakes started pulsing after a couple of thousand ks on my carbon wheels and slowly got worse. A few thousand Ks later I stopped using them, as they were unrideable. The two front wheels, the brake track width was out my more than 1mm, ie 19mm wide brake tracks had at least one spot 20mm wide. The rear wheel which had done almost twice as much mileage was out by close to 2mm. At least two of these spot was near the valve. The rear wheel had three separate spots including the valve.
I found at first I could reduce the pulsing by moving the brake pads down the braking track as far as possible. It just bought me more time.
Any other possibility's? Is it possible once tyres are inflated they're bulging the rim or something, or something wrong with brake pads? I tried to adjust the toe in to no avail
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Re: Chinese carbon frame and wheels thread
Postby unavailablerequest » Wed Jan 07, 2015 7:28 pm
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Re: Chinese carbon frame and wheels thread
Postby lukas » Wed Jan 07, 2015 8:25 pm
- Completely warped a front rim on a descent. This happened worryingly quickly when approaching a hairpin under heavy braking.They replaced it.
- rear wheel is a complete noodle. Out of saddle on steep gradients I'm rubbing my pads with my calipers wide open. Ive been between 70-75 kg in my time of ownership. B grade pack filler here, so not raining down the power by any means.
Junk in my opinion.
Look great though, especially with tan side walled tyres. They just don't come with me for any serious riding.
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Re: Chinese carbon frame and wheels thread
Postby nicko95 » Wed Jan 07, 2015 9:14 pm
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Re: Chinese carbon frame and wheels thread
Postby rodneycc » Wed Jan 07, 2015 10:07 pm
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Re: Chinese carbon frame and wheels thread
Postby mattwilkinson » Thu Jan 08, 2015 11:18 am
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Re: Chinese carbon frame and wheels thread
Postby jules21 » Thu Jan 08, 2015 11:22 am
a fair bit. but it's not the magnitude of the run-out, but the rate of change. if it's a smooth buckle, the brakes will cope and you won't feel it. i once cracked a rim though and although it didn't put the rim too much out of true, the sudden change in rim surface made the brake pulse noticeably.mattwilkinson wrote:How out of true would a wheel need to be before the brakes start to pulse? I'll upload a video of mine....
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Re: Chinese carbon frame and wheels thread
Postby unavailablerequest » Thu Jan 08, 2015 11:32 am
nicko95 wrote:who do you guys recommend when buying Chinese carbon frames/wheels
anyone is fine simply think they are ultimately from the same source, just different "presentation", weigh your choices on on the looks, price, geometry, specs, trustworthiness.
thats how i accessed mine.
but why bother? just pay few hundreds more and you can get one from your lbs right?
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Re: Chinese carbon frame and wheels thread
Postby jules21 » Thu Jan 08, 2015 11:33 am
they're not the same as brand frames. i have a Hong Fu, i'm happy with it for the price, but it's not as high quality as a more expensive brand frame like S-Works etc.unavailablerequest wrote: anyone is fine simply think they are ultimately from the same source, just different "presentation", weigh your choices on on the looks, price, geometry, specs, trustworthiness.
thats how i accessed mine.
but why bother? just pay few hundreds more and you can get one from your lbs right?
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Re: Chinese carbon frame and wheels thread
Postby black4tress » Thu Jan 08, 2015 11:38 am
Had similar experience to Lukas with the pulsating rim when braking. They eventually replaced both although took a bit of time to sort out and acknowledge the issue. The replacements were abit better but no where near perfect and its taken about 2k of riding for them to be probably acceptable.
On the plus side, they ride and roll as good as my 303s in terms of spin, minimum flex but at a third of the price.
Maybe they have improved their quality of late ??? who knows...
Btw - they are also nice and polite during pre sales. Post sales although still polite their response times were delayed somewhat.
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Re: Chinese carbon frame and wheels thread
Postby mattwilkinson » Thu Jan 08, 2015 2:52 pm
black4tress wrote:I've got a set of Farsports 50mm....been using them for about a year now.
Had similar experience to Lukas with the pulsating rim when braking. They eventually replaced both although took a bit of time to sort out and acknowledge the issue. The replacements were abit better but no where near perfect and its taken about 2k of riding for them to be probably acceptable.
On the plus side, they ride and roll as good as my 303s in terms of spin, minimum flex but at a third of the price.
Maybe they have improved their quality of late ??? who knows...
Btw - they are also nice and polite during pre sales. Post sales although still polite their response times were delayed somewhat.
Did you find the pulsating settled down a bit? Someone on another forum said using better carbon pads can fix the issue
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