A handlebar is a steering mechanism found on bicycles, motorcycles, and some other vehicles. It typically consists of a horizontal bar that allows the rider to control the direction of the vehicle. Handlebars can come in various shapes and sizes, depending on the type of bike or motorcycle, and they often include grips for comfort and control. In addition to steering, handlebars may also feature controls for brakes and gears, enhancing the rider's ability to manage speed and safety. The design of the handlebar can affect the overall riding experience, influencing factors like posture and maneuverability.