Hi I would like to highly modify my Honda pa 50. I would like to hear how many of you have modified one of these motors and not had problems with cranks breaking. I don't know if it makes sense to put all this money in to it just to have risks of crank breaking very soon. Please give me an idea how long you have used your modified moped with no problems. I would like to know where they normally break.Also I would be interested in ways to make stock crank stronger. Maybe welding,adding braces,cryo treatments etc. This doesn't have to be just Honda either. Thanks