Originally Posted by
Grand Bois
I'm having trouble making sense of this thread. Why would you want to use a French-threaded bottom bracket with the adaptor? The only French threads you might find on a French crank are the pedal and extractor threads.
Maybe it's just me. It's early.
The OP appears to be a newbie (at least to the forum) and assumed that the bottom bracket for a French crankset would have French theads. He neglected to take into acount the USA origin of the donor frame.