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How to measure BB(2 posts)

How to measure BBburhed
Aug 21, 2003 6:57 AM
I'm looking to replace my BB on my Specialized Allez. How is the measurement taken, so I make sure I order the right size. Or if somebody actually knows what the Allez size is that would be even better.

re: How to measure BBRusty Coggs
Aug 21, 2003 7:44 AM
Shell width on frame x spindle length, for current cartridges.It's english thread so shell width is usually 68mm for road bikes. spindle length is end to end for splined types,and end of taper to end of taper for that type. There were lots of allez models with lots different cranks thru time,so no one can answer the question specifically with out more info.