Originally Posted by SamHouston
that thing is cool! I wonder if you could build in a mechanism to lock out the freewheels with a switch, thereby sending yourself into an immediate barrel roll! That would be fun! you might need 10' wheels for that though
I've seen motorized things built like that, both single and double wheel, and they roll like that with heavy use of brakes or acceleration. Monowheelers call it gerbilling because it looks like what happens when a rodent runs on its exercise wheel and then stops. Seems to be the main danger of those vehicles.