Shimano GRX BL-RX810/BR-RX810 Disc Brake Lever - Front Hydraulic Flat Mount Finned Resin Pads BLK Model=Master Cylinder and Lever Assemblies 2-piston XC brake system offers

2-piston XC brake system offers high performance brake control with reduced input force at the finger tips

dedicated SRAM AXS chain support

Separate and independent Open and Pedal pistons for optimum tunability

Power mode change simulates the feeling of normal shifting

Shimano GRX BL-RX810/BR-RX810 Disc Brake Lever - Front Hydraulic Flat Mount Finned Resin Pads BLK Model=Master Cylinder and Lever Assemblies 2-piston XC brake system offersShimano GRX RX810 hydraulic brake levers offer greater control for riding on mixed terrain. Brakes are pre bled Gravel inspired lever and bracket ergonomics BR RX810 disc caliper features Shimano's ICE Technology for excellent heat dissipation Adjustable Reach Yes Brake Caliper Type Flat Mount Brake Lever Actuation Hydraulic Brake Lever Use Left Color Black Hydraulic Hose Length 1000 Adjustable Contact Point No Hydraulic Fluid Type Mineral Oil Rotor