MEROCA Bicycle Hydraulic Disc Brake Set Dual Piston Front and Rear Brake System for Mountain and Road Bikes High-quality aluminum alloy construction for durable, reliable performance Features a dual-piston design that engages both brake pads simultaneously for balanced, consistent braking Equipped with a 3D oil reservoir cylinder for improved responsiveness and smooth lever feel Compatible with standard mounting (51mm B-pillar, 75mm A-pillar) Front brake hose length: 800mm, Rear brake hose length: 1400mm Includes front right and rear left hydraulic disc brakes with 160mm brake disc Enhanced resin brake disc improves stopping power without damaging the rotor Quick response, efficient braking, and automatic pad retraction for reduced wear Designed for easy installation and reliable performance on MTB and road bicycles Color options: Black, Silver Package includes: - Right front hydraulic brake (800mm hose) - Left rear hydraulic brake (1400mm hose) - 160mm brake disc