I'm still slowly restoring my Honda PS50K1 and there is some weird sprocket on the rear wheel. It looked like someone bodged some 4-hole sprocket into a 3-hole one and I could not find a replacement for it. So I sent out a bunch of emails to part suppliers and nobody was able to identify it except for one. The company Leertouwer wrote me back, basically saying "No problem, is this the one you are looking for?"
Uh yeah, that's exactly the one I am looking for! So what gives? This sprocket is suitable for the Honda PC50 and the PS50 but for some reason the PC has 4 bolt holes and the PS(K1) has three. While you'd think that with a gearbox you would like to have a bit more stability and strength and thus have 4 bolts. But nay! PS has three holes.
This is so weird, but also pretty cool! So soon I can add more new stuff to my little project: