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Recreational Cyclocross and Gravelbiking This has to be the most physically intense sport ever invented. It's high speed bicycle racing on a short off road course or riding the off pavement rides on gravel like :The Dirty Kanza". We also have a dedicated Racing forum for the Cyclocross Hard Core Racers.

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Old 10-11-09, 12:00 AM   #1
goneflying
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Damaged seat stay -- Still OK???

Hey guys, i just bought a spec. tricross comp triple....it has a scuff on the carbon fibre seat stay--what do u guys think??
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Old 10-12-09, 05:32 AM   #2
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Originally Posted by goneflying View Post
Hey guys, i just bought a spec. tricross comp triple....it has a scuff on the carbon fibre seat stay--what do u guys think??
You'd be better off asking for advice in the road forum - carbon bikes are almost the rule there, whereas in cross they're still largely avoided because of the need for bikes that survive crashing.
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Old 10-12-09, 07:11 AM   #3
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Damages like that are nearly impossible to diagnose via pictures. Do yourself a huge favor and take it to a shop you trust and have them actually look and feel it. Chances are pretty good that it's just on the clear coating, but seriously, it's your life and family jewels on the line, so don't play the odds on this one.
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Old 10-12-09, 07:37 AM   #4
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if your seatstay fails, it will not be catastrophic.

Take a quarter and tap the stay where the scuffs are. If it sounds real dull, then its cracked. Tap the other side so you can compare the sounds.
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Old 10-12-09, 09:45 AM   #5
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awesome.. thanks for the advice guys
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Old 10-12-09, 11:24 AM   #6
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Comp rider here. Sound will be dull bc of Zertz inserts. Theoretically, these dampen the vibration. Theoretically.
Good news is that that seatstays asembly is essentially a rear "fork", bonded into dropouts and short tube right behind the seat. That upper joint is beautifully, unapologetically crudely finished. This "fork" is designed to be replaced if needed, instead of having entire frame less than perfect (provided parts are still being made), and that was the only thing that reconciled me with carbon in the rear. Not that I will ever race it in mud.....
Show it to the professionals and watch it carefully still.

Good Luck

SF
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Old 10-13-09, 07:07 PM   #7
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Especially good post from sci femme! I try to avoid carbon stays because of the potential for damage - and because I don't believe they're worth a damn. But it's interesting to know the Spesh, despite their tendency to go for gimmicky designs, thought this one out.
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