A bicycle has many parts. It has two wheels. The wheels are round and made of rubber. They help the bicycle move. The frame is the main body. It is strong and made of metal. You sit on the seat. The handlebars are at the front. You use the handlebars to turn left and right. Your feet push the pedals to make the bicycle go forward. The pedals go around in a circle. A bicycle is a simple machine for one person to ride.