Speedway bikes are specialized motorcycles designed for racing on oval tracks, typically made of dirt or clay. They have a lightweight frame and no brakes, allowing for high-speed turns and quick acceleration. The engines are usually 500cc single-cylinder, producing significant power while maintaining a simple design for easy maintenance. Riders, known as speedway racers, compete in heats, aiming to complete four laps in the fastest time. The sport is popular in countries like the United Kingdom, Australia, and Poland, where it has a dedicated following. Races are often held at night, adding to the excitement and atmosphere of the event.