Originally Posted by
jameswelle
Got it! Thanks for all the help. It sounds like if the threads can't be chased, I can always expand to Italian threading then.
While I've heard of that being done, it really requires boring the BB shell to a slightly larger diameter first. Just cramming a right handed Italian tap into a left hand threaded BB isn't a great idea. The minor diamter of the thread should be bored into the BB shell first. Also, the BB would be 2mm too narrow (68mm rather than 70mm) and need a 1mm shim on the right side, at the minimum.