: 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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Stopping power comes courtesy of hydraulic disc brakes with 160-mm rotors.—New Atlas, 20 Aug. 2025 The rear axle will be fitted with disc brakes with single-piston calipers.—Michael Harley, Forbes.com, 28 July 2025 It's got hydraulic disc brakes (Shimano MT200) for precise control and microSHIFT ADVENT x 1 x 10 drivetrain, which shifts nicely.—Scott Gilbertson, Wired News, 5 July 2025 See All Example Sentences for disc brake
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