Shimano GRX RX820 Gravel Rear Hydraulic Disc Brake Kit 1x12-speed

The rear Shimano GRX RX820 hydraulic brake kit combines a lever with a shifter and a disc brake caliper. It is suitable for those using a gravel bike with a 12-speed drivetrain and looking for precise braking.

• Lever and shifter in one piece, for a cleaner setup
• Compatible with 12-speed, double drivetrains
• 2-piston caliper with a flat design and Flatmount attachment
• Organic pads with cooling fins to dissipate heat
• Complete kit for the rear wheel: right lever, caliper, pads and 1700 mm hose

Technical specifications

• Compatibility: 12-speed, double
• Caliper mount: Flatmount (BR-RX820)
• Caliper: BR-RX820, 2-piston (resin), flat design
• Pads: L05A-RF, with cooling fins, organic
• Brake hose: SM-BH90-JK-SSR (J-KIT DIRECT version), 1700 mm (rear wheel)
• Lever weight: approximately 289 g (right)
• Caliper weight: approximately 136 g (rear)
• Brake fluid: SHIMANO mineral oil
• Package contents (rear): 1 ST-RX820 lever (12-speed, rear, right); 1 BR-RX820 caliper with 1 set of pads and a 25 mm mounting bolt
• Other contents (rear): 1 1700 mm SM-BH90 hose; 1 polymer-coated shift cable