I think its actually powered by a person, the driveshaft just transfers the power ;D
Sorry, couldnt resist.
Lord Bowler: Uh oh. You hit the sheriff
Brisco County Jr.: Yeah, but I did not hit the deputy.
And now what? It ended up standing instead of brining pleasure someone riding. Maybe it's a bad design solution?
Right there reason why it's behind glass is that it is the original shaft driven bike, there are others out there, but this one was made the very first year a shaft driven bike was built, and because of this there are only a handful of them left.