Disc brakes are a type of braking system commonly used in vehicles, including cars and bicycles. They consist of a flat, circular metal disc that rotates with the wheel. When the driver presses the brake pedal, brake pads clamp down on the disc, creating friction that slows down or stops the vehicle. This design allows for better heat dissipation and more consistent braking performance compared to traditional drum brakes. One of the key advantages of disc brakes is their ability to perform well in wet conditions. The open design helps prevent water and debris from accumulating, ensuring reliable braking. Additionally, disc brakes are often lighter and provide improved stopping power, making them a popular choice for high-performance vehicles and racing applications.