>>2041324
of course. if you aren't a mechanic, if you ever saw the inner workings of a combustion engine you'd be amazed that all this works together and doesn't break more often. everything needs to be just the right size, in the right spot, rotating at just the right speed within torque spec. an igh is just as complex, but in a smaller package. just watch some videos about servicing them, even old 3spds, and its like wizardry compared to most things you'd do to a bike. i consider myself an ok back-yard mechanic and will do a lot of crap to make something fit/work but i wouldn't touch an igh unless i knew i had the parts
pic rel is just an automatic transmission but like igh's, they can differ internally yet rely on the same basic mechanics