Re: what did you do to your motorized bicycle today?
Cruise, I guess I worked with what I was familiar with and knew of where to get the parts.
I did have a guy seeing me build my motor bike and offered an engine that already had a gear reduction box attached. That would have been easiest!
Some how I never had it given to me and so far the dual jack shaft system behind the engine works fine. I know at some point you wear parts prematurely if you let the grime stay and keep running it anyway.
But your right, you often don't see such short sections of chain used.