Disc brake set rear Shimano GRX ST-RX600(R) + BR-RX400(R)

The SHIMANO GRX DUAL CONTROL LEVER delivers light and responsive shifting for mixed-terrain riding. The ergonomic shifter design improves comfort and the textured, anti-slip brake lever increases control on bumpy terrain. With a low-profile Flat Mount design, the SHIMANO GRX BR-RX400 hydraulic disc brake support provide greater control for mixed terrain riding. SHIFTER:DUAL CONTROL LEVERGreater mixed-terrain control Gravel inspired lever and bracket ergonomics Anti-slip brake lever Same light shifting operation as top tier road systems ROAD 11-speedReach adjust Clamp band: SteelClamp band Inner diameter: 23.8 - 24.2CALIPER:Bike Discipline: Gravel Mount type: Flat mount Brake type: Disc brake Hydraulic Excellent heat dissipation ICE TECHNOLOGIES Simple set up and maintenance Convenient tool access Simple wheel replacement Easy and clean bleeding system ONE WAY BLEEDING Brake hose (Kit): SM-BH90Caliper fixing bolt_Anti loosen method Bolt fix pin, snap ringCaliper fixing bolt_Tool size 4 mmHose joint: StraightBrake pads INCLUDEDPad mount: Pad axlePiston: 2Oil: SHIMANO MineralRecommended disc brake rotor (NOT INCLUDED): SM-RT64