Disc brakes are one of the most common braking systems in cars today, appearing in rear-wheel, front-wheel, and all-wheel drive vehicles. When you press down on the brake pedal in the driver’s seat, the pressure from the brake line compresses a caliper above your wheel rotor. That caliper is lined with a pair of brake pads, which are made of a high-friction material. These pads are pressed into the sides of your rotor, absorbing its kinetic energy and slowing
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