The motorcycle frame is from a Yamaha YSR-50. Smaller than a standard street bike and larger than a pocket bike it comes with a 50cc engine and is street legal. The gas turbine is being ...
A lesser-known motorcycle, the Benelli TNT 135, is the only mini-moto on this list with over ten horsepower. As TopSpeed's TJ Hilton states, "Benelli's TNT 135 is essentially a pit bike on steroids." ...