What Is a Motorcycle?

A motorcycle is a two-wheeled motor vehicle steered by a handlebar from a saddle-style seat. It has a gasoline engine that converts the reciprocating motion of pistons into rotary motion to propel the bike forward. Two hand levers allow the rider to operate the clutch and throttle while a pair of foot pedals control the rear brake and gear shifting. A headlight, taillight, turn signals and horn are standard equipment. Many models also include a windshield to reduce wind and road debris.

The term motorcycle is often used interchangeably with moped and scooter, although the latter typically has a smaller engine that produces less torque. The motorcycle’s frame consists of a central tube (called the head tube) that connects to fork tubes on either side of the front wheel, which in turn are attached by legs that house hydraulic springs that support the wheels and control their movement. The chassis is usually constructed of aluminum or steel for durability and strength.

Regardless of the type of motorcycle, all bikes must comply with the same federal and state safety regulations as cars and trucks. As such, it’s important for all riders to conduct a basic inspection before riding to ensure several essential features are functioning properly. For example, the rider should test the brakes to make sure they are firm and able to hold the bike when fully applied. In addition, they should also verify that the horn and clutch are working correctly before starting up the bike.