disc brake
a wheel with a metal disc attached to it a caliper which clamps down on the brake disc a brake pad which presses against the disc a hydraulic or cable system to activate the brake a lever or pedal to control the brake
disc brake which is a wheel with a metal disc attached to it disc brake which is a caliper which clamps down on the brake disc disc brake which is a brake pad which presses against the disc disc brake which is a hydraulic or cable system to activate the brake disc brake which is a lever or pedal to control the brake