I talked about doing it before now I'm rethinking it thanks to norman. I can mount a friction drive electric engine on my gasoline engine. Why you ask?

Well for one thing I use brushed engines that turn into generators when the engine spins faster than the motor calls for. Ie when the gasoline engine is used. So I have a good starter motor to push it even up hill while I start the gas engine. Also an emergency drive engine to get me home in case the gas engine fails.

I can also ride it on th bike trail using the electric engine and recharge the batteries when I ride it home. It seems very doable. Especially since I'm not into speed. Also very small batteries would do since they are not the only source of power.

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