Have Wheel, Will Travel
Many years ago I saw a TV program that included automotive design exercises by young Japanese employees of car manufacturers. There were some fascinating ideas on display but the one that caught my eye was the single-wheel vehicle. Not a motorized unicycle, you understand, no, a much cleverer idea that seated the driver inside the wheel.

Whether it should be termed a car or a motorbike is open to debate but it seemed a suitably dreamlike subject for this blog. I searched the net for anything on the design and came up with a car in India that was at drawing board stage only, a few pictures of unicycles, but nothing resembling what I remembered or even using the same idea.
Then I thought that it might be described as a motorbike and tried that. Bingo! Not the design I had seen but the identical idea actually put into practice; in fact, a brief movie of some guy demonstrating the contraption. The machine is more obviously a motorbike than the Japanese version but it is just as pretty a concept and, wonder of wonders, it works!
You can see the thing in action by clicking on this link. It looks highly dangerous when moving but what really worries me is what happens when it stops. If I remember correctly, the Japanese design had some sort of arrangement to prevent it tipping over at rest but I can see nothing similar on this one. Perhaps the idea is to wait until nearly at a full stop, then leap off and run for your life!
Obviously, this idea is not entirely practical - the wheel gets in the way of your forward vision for a start - but, being the sucker for clever ideas that I am, I just had to show it to you.



I saw Suzi Perry (MotoGP commentator) on tv recently doing a piece on a Dutch (I think) firm that had developed a mono-bike very similar to the one in that clip. When Suzi was riding it it was very obvious that the idea has some pretty extreme problems. Like you say forward view is a problem but so was the inertia and torque reactions of the engine/rider part of the contraption. Much better is the Carver three wheeler (oh and who’s that driving it in the video?):
http://www.carver-worldwide.com/Movies/LoadMovie.asp?S_ID=64&nc=1
By Mad on October 23rd, 2006 at 6:48 am
That Carver looks like pure fun, Mad! Very cool. And Jenson seems to be enjoying the experience.
Sure, the mono-bike (is that what we’re calling it?) has more problems than are worth solving - but I thought it was interesting, even so.
By Clive on October 23rd, 2006 at 6:55 am