Anyone ever run into a fairly simple way to convert a standard bike wheel/hub into a "wheelman" style axle pedal assembly? You know like on the big wheels we grew up with, where the pedals are attached directly to the axle, no chain involved? I am trying to brainstorm some way to build some thing like that with a freewheel on it. So the pedals aren't always cranking on me. Any thoughts or ideas are welcome.