MTB Bicycle Hydraulic Disc Brake Fits Bike Front Rear 4 Piston Oil Disc Set BJ

Braking 4-piston calipers transmit oil pressure directly to the brake. Braking Direction :LR-RF. Use oil: Mineral oil (prefilled). Compared with the double-piston brake, the braking force is increased by 20%, and the wear resistance is increased by 150%.

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