Im pretty sure in my case im gonna keep it simple and cheap and go pusher trailer style, all i need to do that is the mini bike wheel and sprocket,
These questions i have about mounting the engine out back of the frame are more to reference theory so i can learn something about gearing etc,
I dont really like bugging businesses for tech when its very unlikely i will buy anything from them,
You think a big enough sprocket on my axle would clear my frame, how about tooth count and how big approximate, side to side is tge sprocket you have in mind then i can go mrasure from my axle and see if the frame is less than half the sprocket away from axle,
Another possible issue is the so called transmission for a 79cc looks like it mounts so your drive is behind engine, ie mini bike,
In my case my engine would be behind the axle chain going forward from engine to it i do not know if the trans will mount to engine that way....