It works to some extent.

I have seen it in person at Lakeland during Stuntfest. However the way its sent up the drum wheel in the rear is heavy so you really have to clutch and gas hard really hard. If you were to do it in the street you'd land on your ass in a second. Plus you couldn't do slow wheelies with it.

Nevertheless I would love to own one. Could you imagine the amount of money you would make if you had one at the fair charging 5 to 10 bucks a pop.