Joined: Sep 2003
Posts: 2,276
Likes: 0
From: fogtown...san francisco
Bikes: Ron Cooper, Time VXSR, rock lobster, rock lobster, serotta, ritchey, kestrel, paramount
what make and size arm do you need? is it the drive side or the chain ring side? try ebay or aebike.com go to the parts and do a search. btw, I have a non drive campy 172.5 sitting around...make me an offer!