Aw come on now that's the fun of it a game of "stump the chump" when it breaks down or won't run keeps a guy thinking.
the girl form England talked about stream powered bikes I'm wondering if a guy could use the latest tech. and build a stream turbine powered bike with all of the goodies as small or smaller than the current bike's engine package would that be cool! A stream whistle would wake the dead for a horn.
For fuel anything that will burn to make steam would work form oil to alcohol to used cooking oils something t think about. I'm interested in solar power but don't know a thing about it yet.