Front And Rear Mountain Bike Disc Brake Calipers With Hydraulic Disc Brakes Are

• Braking System:Line Pulling Disc Brake Compatible Hydraulic Disc Brake
• Note: Do not remove the "yellow piston block" when installation, otherwise it will cause oil leakage or scrap the oil hydraulic disc.
• Two reasons that will cause brake noise: 1) the wheels are not installed properly; 2) the disc rotor is not flat. Please note.
• Suitable for mountain E-Bike,bikes, road bikes and folding bikes
• Weight:Front 199.6g,Rear:204.8g