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Old 10-04-07, 07:37 AM   #1
George
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carbon fiber derailleur clamp

I just bought a carbon fiber bike and while cleaning it I noticed the derailleur clamp on the seat post was moved up and it left a mark on the cf, not much, I can feel it with my finger nail. Should I be worried about it? I don't think it would fail, I was just wondering if water can get in there.
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Old 10-04-07, 10:57 AM   #2
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Ride on, mate. No worries. Maybe get some clear nail polish at WaltMart to use as a protectant.
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Old 10-04-07, 01:38 PM   #3
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A clamp-on derailleur on a CF bike?

That's pretty odd...I had assumed that all CF bikes would use the braze-on style of derailleur mount.
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Old 10-04-07, 01:55 PM   #4
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A clamp-on derailleur on a CF bike?

That's pretty odd...I had assumed that all CF bikes would use the braze-on style of derailleur mount.
My girlfriends Orbea Orca had a clamp on....
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Old 10-04-07, 02:00 PM   #5
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A clamp-on derailleur on a CF bike?

That's pretty odd...I had assumed that all CF bikes would use the braze-on style of derailleur mount.
not odd at all actually.

Seat tube should be fine, wouldn' worry about it.
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Old 10-04-07, 02:07 PM   #6
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Thanks for the replys guys, by the way it's a beautiful bike, Specialized.
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Old 10-04-07, 04:35 PM   #7
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I'm also surprised that anyone would intentionally put a clamp-on derailleur on a CF frame. I don't think I've ever seen that. I think it will probably be OK but don't think it's a good idea. I've owned 5 CF bikes and they've all had braze-on type FD hangers.

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Old 10-04-07, 07:16 PM   #8
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It looks like a clamp on, how does the braze-on type look?
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Old 10-04-07, 07:29 PM   #9
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You guys were right it is a braze-on.
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Old 10-04-07, 07:32 PM   #10
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You guys were right it is a braze-on.
Is it a braze-on fd fitted with an adapter clamp? What the other posters are referring to is that the frame has a tab mounted on the seat tube that the fd bolts to and there is no circular clamp. These are common on carbon frames but not at all universal.
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Old 10-04-07, 07:51 PM   #11
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It's on a Specialized Roubaix and it looks like it does have the fd on a adapter clamp.
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Old 10-04-07, 07:54 PM   #12
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Many CF frames use clamp on FR der. No biggie.
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Old 10-04-07, 08:03 PM   #13
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I just found a picture and it is a clamp on. I guess they mounted it and then moved it up. The more I look at it, I guess it's not as bad as it sounds. It's just a little dent and it should be ok. I guess after spending that kind of money, I was going over it with a fine tooth comb. Thanks again for all the replys.
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Old 10-06-07, 06:21 PM   #14
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My ridley and my kuota are clamp on
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