last edited 2009/04/18 11:50 (*
For long one of the most "modern" vehicles for urban application, now becomes almost a classic of its own: the Segway.
Source: Segway PT
A newer version with two seats:
A truly exotic approach is this mono wheel approach, where you sit where the hub usually is. I don't think this is really an efficient vehicle, because more friction due more wheels to create a hubless setup, you need various smaller wheels to keep the large wheel attached to the drive and seat and overall structure - on the other hand there is only one wheel and wheel friction involved, but I speculate that doesn't make it even.