What is the difference between mechanical disc brakes and hydraulic disc brakes?

1 Answers
FinnLee
07/29/25 10:38pm
The differences between mechanical disc brakes and hydraulic disc brakes are as follows: Difference in working medium: Hydraulic disc brakes use oil as the medium, utilizing the expansion of oil to drive the operation of the brake calipers. The oil used in hydraulic disc brakes is generally lightweight, with fewer impurities, good transparency, and light weight. Structural difference: Hydraulic disc brakes generally consist of three major components: the brake lever, the hose, and the oil cylinder, while mechanical disc brakes use a steel cable to connect the brake lever to drive the caliper system for braking. Difference in working principle: Hydraulic disc brakes adopt a dual-sided floating braking method, where both brake pads move simultaneously, fully contacting both sides of the disc to generate greater friction, enabling rapid braking. Mechanical disc brakes use a steel cable to connect the brake lever to drive the caliper system for braking. Most mechanical disc brakes typically use a single-sided floating caliper braking system, where one side remains stationary while the other side compresses, thereby tightening the caliper gap to create friction against the disc for braking.
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