Originally Posted by
bikemig
The "older" Motobecanes were French threaded (70s and earlier I believe) but the "later" ones (80s?) were Swiss. .
In other French brands, yes, absolutely. In the case of Motobecane, not in my experience. I have had several 1977 Motobecanes, all had Swisss BB. And I have had later 1970s, all the way up to 1982 with Swiss BBs.
Just one guy's experience, having owned a couple of dozen Motobecanes.