While this looks like a potentially cool ride (definitely an eyecatcher), I suspect learning to ride it well enough to actually enjoy it would be time consuming, dangerous, and tedious! Most monowheels are used as recreational vehicles on private land, but amazingly this V8 powered monowheel is actually road legal in the US. video of smaller monowheel in action: http://www.veoh.com/videos/v665591JdsbyMwZ You can check out the V8 monowheel and another oddity, the Wheel Surfer here: http://www.diseno-art.com/encyclopedia/strange_vehicles/wheel_surf.html