How to choose bottom bracket?
I'm in the process of updating my front drivetrain, and in the event my FD doesn't agree with my current crankset, I'm considering upgrading to an Ultegra 6500 crankset that my friend will sell to me for dirt cheap.
The problem is that I don't know if my current BB will work, and if it doesn't, which bottom bracket will I need to match the Ultegra crankset? Will the newer bottom brackets even fit my frame? It's a '90 Trek 1000. I'm guessing since it's an American bike, I'll need an english BB? Or do BB's get more complicated than that?
Last edited by trdsupragt; 09-07-11 at 03:56 AM.