> I believe Bike generators are actually magneto's, And the wont drive from
> the wind
> At least they were a jillion years ago


They are usually AC output, if that's what you mean by magnetos.
They spin a permanent magnet in a winding.
There's no field control as in an alternator, so you get what you get.

They need some sort of blade arraingement to function as a windmill, but
I've seen this done, using a bicycle wheel, and plastic or metal between the
spokes to emulate the "american farm" type windmills. Not bad actually for
this application, it's cheap and easy, if not technically efficient.