I'm overhauling a Motobecane Nomade for someone, and at one point it was upgraded with a new BB and a cotterless crankset. When I went to remove the fixed cup, it wouldn't budge. I know they're supposed to be in really tight, but I've never failed to get one out...anyway, I let it go. When I went to remove the adjustable cup, though, it too wouldn't budge. If I try any harder I'm going to snap my BB tool. But here's the thing...the lockring spun right off, and the grease on the threads is still fresh...so the cups were greased, and it wasn't in the too distant past either. My guess is that someone shoved a BB in with the wrong threading...problem is they didn't even bother to get the adjustment right Any other thoughts on what could be going on, or is that probably it?