RaleighGuy
I just got one of them too !
I'm not sure how fast it will go but :
If ya sit on the back of the seat ---
--- don't just jerk the throttle open .
you'll land on your butt !
The only problem I found so far is , ya have to use the brake going down hills. around my place tats a real concern . I'd like for the rear drum break to last a long , long , time .
So
I'm thinking of putting a roto-tiller (loose belt / tight belt) system on it in place of the centrifugal clutch . (engine brake ). Take that "drive-unit" cover off and you'll see how easy the conversion will be.
Also , I looked at the Torque-Converter option , but don't know how the engine brake would work with that ??? My neighbor had a "Rupp-Mini bike (5HP) with a tork-converter, well it would spin the tire in gravel taking off and still top-out about 45 mph w/the pulleys fully converted
http://www.ebay.com/itm/272370201955?_trksid=p2060353.m1438.l2649&ssPageName=...I've got about 5lbs of air in the tires and it rides smooth .