Road Bike, Cycling Forums banner
1 - 2 of 2 Posts

·
Registered
Joined
·
12 Posts
Discussion Starter · #1 ·
I want to swap out my bb and cranks but I don't know how to determine the size of bb and length of spindle? Do I have to remove the old one to find out? I do know the existing one is an Isis drive. The bike is a Veloz, and I am not having any luck finding info on it, except when I bought it the shop told me it was made by Haro. The crank is a Power Pro, RPM, not really sure about that either. Any help??Tkx
 

·
Registered
Joined
·
10,161 Posts
simple...

Very few frames, except Italian brands (but not BianchI) and Merckx use Italian threaded BBs. Undoubtedly, you need an English threaded BB. The spindle length is determined by your choice of crank, not the frame. If the right hand side has left hand threads, then it's English for sure.

The two links below have all the info you could ever want. SAVE them for future use.

http://www.parktool.com/repair/readhowto.asp?id=94

http://www.sheldonbrown.com/bbsize.html#shimano
 
1 - 2 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top