Shimano Black Shimano GRX RX825 Di2 rear hydraulic disc brake shift-brake lever 2025

Rear hydraulic disc brake. Brake: The GRX BR-RX820 disc brake caliper brings a new level of control to gravel cycling with enhanced modulation and a quicker initial braking point. And despite its smaller construction, the system is quieter and easier to maintain.
10% wider pad clearance decreases brake noise
Maintenance-friendly bleeding process
Brake hose: SM-BH90-JK-SSR
Hose joint: Straight
ICE TECHNOLOGIES pad compatible caliper
Pad: Standard: K05S-RX Resin (w/o fin), L05A-RF Resin (w/ fin). Option: L04C-MF Metal (w/ fin)
Recommended brake lever: ST-RX820 ST-RX820-LA BL-RX820-L
Recommended disc brake rotor: RT-CL800
Oil: SHIMANO mineral
ONE WAY BLEEDING
Mount type: Flat mount
Piston: 2
Average weight: 146 (Front) 136 (Rear)

Lever: The 12-speed SHIMANO GRX Di2 DUAL CONTROL LEVER delivers fast, wireless shifting for gravel and mixed-terrain riding. The ergonomic lever features raised hoods, ribbed surface texture, and an anti-slip coating on the brake lever for increased security and control. The hood body is newly optimized for seamless integration with flared handlebars while retaining the gravel-specific third button location. To complete the cockpit, RX825 levers are compatible with three satellite shifter options and feature SHIMANO FRONT SHIFT NEXT functionality to maximize rider customization options.
Clean cockpit with fast and reliable wireless shifting
3 to 4 years of battery life with easy-to-change CR1632 shifter batteries (Initial shifter batteries may have a shorter battery life than stated above.)
Better comfort and control on mixed terrain
Anti-slip coating on brake levers
Raised hoods and textured surface
Optimized for use with flared handlebars
Customizable shifting setup
Compatible with SHIMANO's three SW-RS801 satellite shifter options
Features SHIMANO FRONT SHIFT NEXT functionality