That looks like the cheap ass China stuff for bicycles that's great for people who don't actually ride. Every cotter crank I've seen that is still in service isn't clocked right anymore and ends up getting replaced with a modern tapered crank. Unless the owner is just too cheap or dumb to fit a modern part. Usually the bikes are so bad we won't even mess with it unless the repair bill is payed in advance. That shit is dangerous on bicycles, I can't imagine it even being considered for a motorcycle.