Hi, a newbie here. My initial impression of the add on gas motor kits is that they are clunky with a Rube Goldberg power train. Given that there are nice integrated hub motor electric drive bikes out there (with HD spokes and brakes), has anyone thought about a Volt style hybrid - basically a miniaturized clean running motor generator that could be added for longer range/more power. Bring it (w/ a plug in and latch) or leave it off for shorter trips.
I love my 150cc scooter because I can keep up with traffic. There was a small hybrid scooter on the market a while ago, not sure if its still around.