it runs on unleaded, the model i'm buying tops out at about 42 mph.
The bigger ones still get great milage and can go around 70 mph.
Kawaski makes some great Duel Purpose bikes, AKA street legal Dirt Bikes!
Take the bike to work or school , every day unless it rains, great way to have fun and help reduce the emissions of green house gasses, so hopefully one day we'll all freeze!