I was wondering how hard it is to replace the crankshaft bearings on a puch 2-speed. The bearings I found for it on 50cc.nl were 35 dollars and I need both of them. I think I might try and just get regular bearings for cheaper. The ones on 50cc.nl were the same kind as came in the engine, the races came out of the two halfs, kind of strange. Does anyone who has taken one of these apart know if this would work?