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Brake rotors, also known as brake discs, are an essential component in automotive braking systems. They are typically circular and mounted to the wheel hubs of vehicles. When the brake pedal is pressed, the brake pads clamp down on either side of the rotor, causing friction that slows or stops the rotation of the wheels. Brake rotors come in a variety of materials including cast iron, ceramic and carbon fiber, each with their own benefits and drawbacks. Over time, brake rotors can wear down or become warped, requiring replacement to maintain optimal braking performance. Regular inspection and maintenance of brake rotors is essential for safe vehicle operation.