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VLD [36.1K]
3 years ago
13

What part causes the disc brake caliper piston to retract when the brakes are released?

Physics
1 answer:
Orlov [11]3 years ago
3 0
The part that causes the disc caliper piston to retract when the brakes are released is the square-cut O-ring.
The square cut seal is the most important part of a disc brake caliper, for keeping the brake behind the piston so that when you step on the brake pedal, it releases a pressure that applied to the piston which in return applies the pad to the rotor.
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