A bicycle handlebar is the steering control for a bicycle. It is the equivalent of the tiller of vehicles and boats, as it is usually mechanically connected directly to a rotatable front wheel by a lever which in turn connects it to a fork. Most handlebars are straight and horizontal, but there are some designs that sweep upwards or backward. Handlebars provide a mounting place for brake levers, gear shifters, bells, and horns, as well as a place to rest the rider's hands.
There are several types of handlebars, and each type has its own advantages and disadvantages. The most common type is the flat bar, which offers a good balance of comfort and control. However, if you're looking for a more aggressive riding position, you might prefer the drop bar.
Whichever type of handlebar you choose, make sure that it's the right size for you. If it's too big or too small, it will be uncomfortable to ride and could even cause you to lose control of your bike.