Join Date: Apr 2009
Location: Camp Hill, PA
Bikes: Too many to list here check my signature.
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Originally Posted by dazchilly
So because my bb shell is 125mm does that mean i need a 125mm bb? or what would be the best length?
A 125mm shell?? how did you measure that?
BB shells come in three basic sizes since about '85 Italian 36x24 threading and 70mm shell width. English 1.37x24 with a 68mm shell. Also there was (I am not certain this is still inuse) a mmountain bike BB 1.37x24 but a 73mm shell width.
You need to know whether your bike has an English (most common these days) or Italian. If your bike is Japanese in manufacture (including Tiawain and other Asian countries) odds are pretty good it is english. after say '88/89 even most Italian tubed/manufactured frames came with English BB.
What you need to do is... figure out what your frame is. Then decide ona crank and buy the bottom bracket that matches the crank.
Bianchis '87 Sport SX, '90 Proto, '90 Campione del Fausto Giamondi Specialisma Italiano Mundo, '91 Boarala 'cross, '93 Project 3, '86 Volpe, '97 Ti Megatube, , '90 something Vento 603,
Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '09 Motobecane SOLD, '?? Jane Doe (still on the drawing board), '90ish Haro Escape