A motorcycle is a two-wheeled vehicle powered by an engine. Motorcycles are one of the cheapest and most widespread forms of motorised transport for many parts of the world.

On a typical motorcycle the operator sits astride the vehicle on a seat, with the hands on a set of handlebars and the feet supported by footpegs. When the bike is at rest, the rider puts one or both feet on the ground. Engine speed is controlled by twisting the throttle on the right handlebar grip with braking being controlled with a hand lever and foot pedal. Shifting of gear ratios is controlled by operating a foot lever with the clutch being operated by a hand lever. Steering is accomplished by moving the handlebars.