I hear a squeek/grind coming from our 2004 Trek T-2000 that we've narrowed down to coming from the front BB area. It developed during a rain ride. Well, I guess it could still be a loose chainring on the captain's cranks, or timing chain ring on the rear cranks, or a loose crank arm of the front set. But I guess I'll start with the BB bearings and eccentric.
Lots of ideas back here. On our bike there was a little paint in the BB housing. This caused a squeak at 12000 miles.
I know a guy who's similar squeak turned out to be a broken frame (carbon fiber-single bike), but I really doubt that's your problem!
I've never used teflon tape. I prefer a LIGHT coating of anti-seize, but a light coating of grease is easier to work with. Bushnell has an article on the list of things to grease to eliminate noises.
Last edited by justcrankn; 05-14-11 at 07:25 AM.
Reason: added link