so your saying that the thread pitch or diameter is wrong, get real ;p if that was the case, then the freewheel wouldn't go on... the freewheels are from the same batch, they are new, so they were probarbly cut by the same tool... the cranks, maybe they were cut by the same tool, it is possible! anyways u asked me to give my views and i have done it's not to do with shitty tooling, its to do with worn tooling..