I am so ashamed of my master bike builder title. I keep looking over my shoulder. I feel like someone is going to come arrest me for impersonation of a real builder.
Also if a 350 watt motor will run you up to 15mph, I wonder what a 1500 watt one will do. that would be a 110 volt 12 amp motor not all that big an engine. I like the concept though. Gasoline engine running a generator not a bike. they have some 2 cycle engine on ebay for like fifty bucks. Plus im sure there are free lawn mower engines all over the place.
God I have got to learn to weld.
ps im told any brush type motor is also a generator. If you spin it, the input wires will output electricity. So you could get a second brush motor like your bike motor and use it as the generator. At least that seems right. lots of used appliance store probably have motors. Not to mention all the dead window air conditioners laying around.