ZTZ 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

【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】<65dB mountain bike hydraulic brakes via resin-metal hybrid pads protect rotors.Triple-sealed CNC cylinders ensure leak-free reliability – 92% quieter than sintered competitors 【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