: a brake that operates by the action of a frictional material pressed against the sides of a rotating disc by a caliper
Illustration of disc brake
1 caliper
2 disc
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Both cars used a similar unibody chassis, with MacPherson-strut front suspension and four-wheel disc brakes.—Robert Ross, Robb Report, 4 Apr. 2025 The ebike rides on 20-inch wheels wearing 1.75-inch air tires, and hydraulic disc brakes help bring it to a stop.—Paul Ridden, New Atlas, 27 Mar. 2025 Braking, via 4-wheel disc brakes with standard ABS, is efficient.—Josh Max, Forbes.com, 28 Mar. 2025 Crucially, the electrification comes with uprated disc brakes to improve stopping distance and safety compared to the original.—Trinity Francis, Forbes, 17 Mar. 2025 See All Example Sentences for disc brake
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