Handlebar (noun)

A bar attached to the steering mechanism of a bicycle or motorcycle on which the rider can rest their hands and steer the vehicle.

Origin:

Late 17th century: from handle + bar.

Examples:

1. The handlebar of my bike is a bit loose and needs tightening.
2. I always wear gloves when I ride my motorcycle to protect my hands from the heat of the handlebars.
3. The handlebar of my racing bike is made from carbon fiber to make it as light as possible.
4. I broke the handlebar of my bike when I hit a pothole and went flying over the handlebars.
5. I put a bell on the handlebar of my bike so I can alert pedestrians that I am passing them.