Originally Posted by jburr36
On another note about the generator I thought about is how badly it could chew through the tires at 20+ mph. They seemed like a good idea until I started contemplating about that.
There are a few 5hp lawn mower engines with rollers on vertical shafts scrubbing tire sidewalls on motorized bicycles. If the tire can handle that, bike generators at 20 mph shouldn't be a problem.