Subject: Re: New Frame Old BB Posted by: JH on December 06, 2000 at 21:36:26: In Reply to: Re: New Frame Old BB posted by Jim on December 06, 2000 at 10:42:11:

Message: >>I have purchased a new Serotta Ti frame. I have an old Litespeed Ti. I wanted to transfer my groupo from the old bike to the new. However, I was told by my LBS that my old BB would not be compatable with my new frame's shell. >>I have they changed the standard size of the english BB? .............to my knowledge ,the old Lightspeeds and new serottas both english threading, amd the BB should switch frames ok. Ask bike shop for more specifics on their position and if they can't support it, with real facts, look for new bike shop. They may just want to sell you a new BB....IMO. You did not say if you frame is mountian or road?? Typically, the serotta or lightspeed road frames would have english threading with a 68mm shell width. However, mtn bike frames would have english threading with a shell width of 68 OR 73mm. Maybe this is the difference?? Thanks for the reply. They are road bikes. I'm inclined to agree that my LBS wants to sell me a new BB...they tried to sell me everything else. New BBs are cartridge and the old BBs are cups. I'll remove the old one and try it on the new frame.