Bicycle Mechanics - carbon fiber derailleur clamp
Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.
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.
capwater
10-04-07, 10:57 AM
Ride on, mate. No worries. Maybe get some clear nail polish at WaltMart to use as a protectant.
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.
biffstephens
10-04-07, 01:55 PM
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....
Quijibo187
10-04-07, 02:00 PM
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.
Thanks for the replys guys, by the way it's a beautiful bike, Specialized.
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.
Al
It looks like a clamp on, how does the braze-on type look?
You guys were right it is a braze-on.
HillRider
10-04-07, 07:32 PM
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.
It's on a Specialized Roubaix and it looks like it does have the fd on a adapter clamp.
Bob Dopolina
10-04-07, 07:54 PM
Many CF frames use clamp on FR der. No biggie.
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.
ultraman6970
10-06-07, 06:21 PM
My ridley and my kuota are clamp on
Powered by vBulletin® Version 4.1.12 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.