I have one bike and am searching for a workable "hybrid" system for car-free living. I like the idea of a powered pusher. I looked into electric systems first but want a gas option for long trips. I'd like to get around 200mpg. I'm looking into the Tanaka PureFire and Robin-Subaru engines in approx. 20cc size. I'm interested in burning propane. Perhaps if I burn propane at fixed RPM a good use would be to charge batteries. Google searches led me to this fantastic site, where like minds are already doing most or all of what I want to do!
Liam
Liam