New MEROCA Bicycle Brake Hydraulic Disc Brake MTB Double Piston Brake Front Rear 800/1400mm MTB Road Bike Oil Pressure Brake MEROCA double piston principle aluminum alloy two-way brake hydraulic disc brake three-dimensional cylinder Universal brakes for bicycles and mountain bikes, including the right front 800mm brake and the left rear 1400mm brake. Equipped with a three-dimensional oil cylinder, the vertical cylinder can provide a larger piston in a short distance, which can easily brake with a pinch! Upgrade the resin brake disc without damaging the disc, and further improve the braking effect. High-strength aluminum alloy material, durable special aluminum alloy material for braking, quick braking and timely reset. Double-piston driving principle: both sides drive friction discs at the same time, and brake pads return automatically. Equal strength on both sides, synchronous friction, stable braking and strong braking force! Agencies test, the material is excellent, the quality is better, the brand factory is straight out, look for us, and the quality is guaranteed. Specifications: : MEROCA Color: black, silver Material: high strength aluminum alloy Oil cylinder: three-dimensional oil cylinder (you can brake with a pinch) Tubing: the front tubing is 800mm long and the rear tubing is 1400mm long Installation dimensions: standard B-pillar 51mm, standard A-pillar 75mm Products: right front 800mm brake, left rear 1400mm brake, 160mm Package Included: right front brake 800mm left rear brake 1400mm 160mm brake disc