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Threaded BB's


bobbejaan

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Posted

Two kinds of thread - English and Italian. AFAIK Campy are the only ones still using Italian thread.

 

As for the English type, there are two kinds:

 

Internal bearing - Square taper, Octalink, Powerspline, ISIS and a few others.

 

External bearing - Shimano Hollowtech 2, SRAM GXP, FSA have one with a 19mm axle that only fits their cranks, and there are a million aftermarket variations on the first two.

 

Hope this helps...

  • 1 month later...

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