What Causes the Rear Brake of a Motorcycle to Fail?

1 Answers
BeauMarie
07/25/25 3:43pm
Motorcycle rear brake failure can be caused by the following reasons: Disc brake rotor and brake pads: There is obvious oil contamination on the surface of the disc brake rotor and brake pads. The oil forms a film between the disc and the pads, reducing the friction coefficient of the friction pair and leading to decreased braking force, which results in brake failure. Brake lines: Air in the brake lines causes excessive travel of the pedal or handle, exceeding the limit rotation angle and failing to generate sufficient braking force. Air is highly compressible. Continuous high-intensity braking: Continuous high-intensity braking causes "vapor lock" in the lines, leading to brake failure. The principle of vapor lock causing brake failure is the same as air in the lines. "Vapor lock" occurs due to the high-temperature boiling of brake fluid.
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