I know this is out there; There's E bikes, and they're ok for certain applications I'd like to open discussion on Gas Bikes... I've been down the pike (punny) as a dedicated conventional bike rider now for years: No car, hardly even ever take public trans. Did help out a friend who was trying to start E bike/scooter franchise by demo-ing his wares. For months forced myself into riding Tidalforce, ebike, many lesser types, electric Birdy, always missed just peddaling. BUT for two abstract reasons I see a niche for small engine gas powered bikes...
One, scooting out of town if my hometown decides to evacuate. Far fetched? I live in a third world country management wise, and probably a good target city. A little assist while pulling a loaded BOB westward would be ok.
Two, After all my experience with e bikes the limitations and battery life is horrible. Just like the Prius fad, there are little cars out there that offer 35 plus mpg, no batteries to replace and with moderate sane use are most viable.
Why not little gas engines on bikes?