Okay, so I am trying to turn an old motobecane frame into a nice fixed-gear bike (actually I'm not really working on it, my friend is who is very bike aware and works at a shop). The problem my friend is running into building the thing is that the head-tube(?) seems to be 1" threaded but he can't get it on quite.
He says he thinks it might be some very odd size that he's not sure about. I believe he was saying he thinks he can force it on, but he doesn't really want to try. Does anyone know if this old French bike has a weird measurement there?
Also, he says the tube that takes the seat post doesn't quite want to accept the seat post (I'm not sure of the sizings here) and thinks he can force it in, but doesn't want to until he is more certain that the reason the seat post isn't going is because of some kind of warping or something in the old frame. Is it possible there is some irregular sizing here as well?
The bike is a Motobecane grand jubile (early 80's?).
Any and all help is appreciated. Thanks.