4-Piston MTB Hydraulic Brake Set, Left Front 850mm and Right Rear 1600mm Hydraulic Disc Brake Kit with PM/is Adapter, Fits for eBike, Mountain Bike and BMX$$Sport & Recreation Other

• 4-Piston Hydraulic Brakes Precision: ZTZ 4 piston hydraulic brakes deliver 15% faster response vs standard hydraulic disc brakes, with 1.2m shorter stops at 30km/h. Safety Tip: Break-in pads with 10 gentle stops before aggressive use • Silent MTB Hydraulic Brakes: • Universal Mountain Bike Compatibility: Pre-configured L-front/R-rear for MTB hydraulic brakes setups. Adjustable lever tension + AB-pillar seats fit most bikes. Front hose length: 33.5 inches (850 mm), rear hose: 63.0 inches (1600 mm) • Bleed-Free Hydraulic Disc Brakes: Our pre-calibrated system eliminates messy bleeding. Internal routing guides and rotor spacers ensure perfect alignment. .Installation Reminder: Please remove the clamp protection piece before installation, and avoid squeezing the brake lever without a rotor or spacer in place to prevent damage. • Pro-Grade Control Levers: Cold-forged 12° adjustable levers (100,000+ cycle tested) optimized for mountain bike hydraulic brakes and they work flawlessly with thick gloves in winter