A bicycle is a type of transport. It has two wheels. The wheels are round. A bicycle also has a seat where a person sits. It has pedals. People use their feet to move the pedals and make the bicycle go forward. You use your hands on the handlebars to turn left or right. Bicycles are made of metal, plastic, and rubber. Many people ride bicycles to go to work or school. They also ride bicycles in the park for fun. A bicycle is good for exercise. It is quiet and does not use gas.