I have an old motobecane, the bottom bracket shell has 1957 engraved in it, im guessing thats the year it was built. I just learned about the french threading problems and it has me worried. Im going to convert it, well im hoping too. My biggest concern is the bb obviously. The headset is still in good shape and the other things like stem size dont seem to be that big of a deal. Right now the cranks on my bike have a square taper not spline. Would square tape arms fit on there such as the sugino RD crank arms? And using the existing bottom bracket im guessing ill have issues getting the chain lined up?
I looked on ebay and found french bb cups so do i need to buy a spindle and bearings and build my own bb that will better work with a track rear wheel spacing? Anyone that can help me that would be great. Is it worth doing or should i just look into a different frame and start with that?