Has anyone ever cracked a carbon wheel by JRA?
12-10-08, 11:38 AM
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Has anyone ever cracked a carbon wheel by JRA?
Many of the carbon wheel failures I see are due to people hitting potholes at high speeds. Is it possible to crack a carbon wheel without a sharp impact, such as hitting a crater or jumping off a curb?
12-10-08, 11:39 AM
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Craters, huh?
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12-10-08, 12:11 PM
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If you wear down your carbon braking surface too thin, it can weaken the structure and ultimately crack. I got such a crack on an older Zipp 303 rim.
12-10-08, 12:29 PM
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Well, if you hit a "crater" or jumped off a curb, then you weren't really "JRA."
12-11-08, 09:46 AM
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I used to have a Ksyrium and now I'm riding Reynolds carbon clinicher(46mm).
When I hit potholes with ksyrium, tires got flat and wheel had bent slightly.
From my group riding, I have hit so many potholes with Reynolds. They hold very well. I never had flat or crack, just one spoke were broken.
So from my experience, carbon rims hold some rough riding very well.
When I hit potholes with ksyrium, tires got flat and wheel had bent slightly.
From my group riding, I have hit so many potholes with Reynolds. They hold very well. I never had flat or crack, just one spoke were broken.
So from my experience, carbon rims hold some rough riding very well.
12-11-08, 09:54 AM
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the answer is yes
you, the owner, are responsible for inspecting your wheels before and after every
ride. I have seen brand new carbon wheels / carbon spokes shipped to bike shops,
installed, inspected, and everyone missed a flaw. then later JRA bam something gives
you, the owner, are responsible for inspecting your wheels before and after every
ride. I have seen brand new carbon wheels / carbon spokes shipped to bike shops,
installed, inspected, and everyone missed a flaw. then later JRA bam something gives
12-11-08, 10:21 AM
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Had a pair of Zipp 303's (circa 2003) that developed cracks at the spoke nipples after a couple of years of use. Zippp replaced them under warranty.
12-11-08, 11:21 AM
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I should add I got hit by a car when I had my Reynolds DV46Ts on. Broke my ribs, wheels fine. I've been hit by cars similarly that destroyed various sets of Ksyriusm...
12-11-08, 11:25 AM
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