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Bottom bracket thread? Whats the diff between english and Italian thread. Is it the angle of the threads thats diferent?
 

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Yeah, and...

divve said:
English has the drive side reverse threaded.
.....there is quite a difference in the threads. English is 1.37"(about 34.8mm in diameter) x24 tpi with a 68 or 73mm shell width and Italian is 36mm x 24tpi with a 70mm shell width.
 
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