Originally Posted by
Mac2131
Ok I posted about this on the rodie page but seeing as the mechanics lurk around here....
I am getting ready to upgrade my frame from my 2009 Trek 2.3 to a 2007 Felt F1 i know ill need to upgrade my front der to a braze on but i just wanna make sure the rest of my drivetrain will swap out ok....
All i have been able to find is that the BB on the F1 is 70mm and i cant figure out the 2.3's BB size.
Also if the BB doesnt fit can can i swap it out and get one that does without changing my crank?
Any help would be greatly appreciated... thanks
I highly doubt your Felt F1 is 70mm bb. If you measure them both very carefully and they are the same number, that BB + Crankset is transferable between those bikes - in your specific case. They are most likely both 68mm/english threaded.