: 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 is provided by dual-piston hydraulic disc brakes with 180-mm rotors.—Paul Ridden, New Atlas, 18 Mar. 2025 Beyond the dual powertrains, the LMX is loaded with high-grade MTB kit, including oversized Formula Cura hydraulic twin-piston disc brakes with 203mm rotors, a long-travel (170mm) adjustable RockShox ZEB fork, and a Rockshox Vivid R2C rear suspension with 180mm of travel.—William Roberson, Forbes, 17 Mar. 2025 Also, the 220mm front and rear hydraulic disc brakes with twin-piston calipers have excellent power and feel at the lever, adding to the feeling of control while riding at speed or off pavement.—William Roberson, Forbes, 7 Mar. 2025 Rounding out the key specs are Tektro hydraulic disc brakes with a 203-mm rotor to the front and 180 mm out back.—Paul Ridden, New Atlas, 3 Mar. 2025 See All Example Sentences for disc brake
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