[Angel And The Wolf]

Originally Posted by cRiPpLe_rOoStEr

But anyway, I'd be more concerned about a provision for reverse gear. Maybe electric reverse like in the GoldWing and some BMW motorcycles?

Don't know what your obsession with car differentials is, but a car's starter motor driving a lawnmower tire, dropped down onto the rear wheel for reverse, with a slider switch, wouldn't be too hard to do.