What is the reason for the disc brake failure with no pressure when squeezed?

1 Answers
McJanelle
07/29/25 8:10pm
Disc brake failure with no pressure when squeezed is a typical symptom of a damaged motorcycle brake master cylinder. This issue can only be resolved by replacing the motorcycle brake master cylinder. Here are some relevant details about motorcycle disc brakes: 1. Working principle: Motorcycle disc brakes operate based on Pascal's principle. The force applied to the brake pedal or brake lever is transmitted as leverage to the hydraulic cylinder, altering the hydraulic pressure. This pressure is then conveyed through the brake line to the brake caliper, pushing the caliper piston to press the brake pads against the brake disc, thereby achieving the braking effect. 2. Advantages: High braking sensitivity, automatic gap adjustment, long service life of components, less effort required for braking, easy maintenance, and rapid heat dissipation.
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