I want one!!

I have seen some of these things - in really great Yewwww Tube videos....
Emergency or hard stop.... and then the rider and machine go:
\"WoooooOOOO, WoooooOOOO, WoooooOOOO\" - headlong into the oncoming traffic and then off into the trees.....
Something about the advantages of leverage, widely spaced points of contact and gravity.
Not to say that these things are not nice at lower speed - but the emergency or hard braking does have this one fundamental drawback.

Mr Garrison\'s \"IT\" springs to mind

Emergency hard braking could be accomplished by rapidly turning 90 degrees like a skater. This could easily be built into the logic making sure the c of g is at it\'s lowest point for the turn to prevent rollover. Perhaps the weight could be biased to one side for such a maneuver statically or even dynamically like leaning vehicles such as the Carver.

Ya know, if you put one wheel BEHIND the other.......

@ Stiffy: I\'m pretty sure that a racing harness inside what looks like a pretty good roll cage is sufficient to keep you from ending up in a tree... and at a top speed of 25 mph, I\'ve pulled hard stops on a skateboard going faster - and haven\'t ended up in any trees yet.

The human brain has all evolutionary history of and d behind body control at speed and for body allignment. This is why skateboarding seems simple. Because it is now hardwired into the meat machine interface. Oout engineer that? DONT think so! That \"TURN90deg.\" Might be easy for aa meatsuit alone...but telling a dumb device-the diwheel- might not be so userendly or as intuitive.

I\'m till fretting over today\'s story about Chinese genetically engineered cows that produce human breast milk. What if China sees this story and produces genetically engineered six-feet-long gerbils to ride in this giant exercise wheel?!?

When stopped, what keeps it from rolling downhill? Automatic chocks?

I,m 67 years old and if I had the chance I sure would try one, looks like a blast to me!