Shift/Brake Lever with Brake Shimano GRX ST-RX825/BR-RX820 Di2 Right, 12-speed

Shift/Brake Lever with Brake Shimano GRX ST-RX825/BR-RX820 Di2 Right, 12-speed

The Shimano GRX Di2 ST-RX825 + BR-RX820 is a complete 12-speed electronic shifting and hydraulic disc brake solution for gravel and cyclocross bikes. High speeds, mixed surfaces and unpredictable routes demand maximum control – this set combines precise Di2 rear shifting with powerful braking performance in one reliable system.

The ST-RX825 Di2 lever delivers fast and ultra-precise 12-speed rear shifting, while the Flat-Mount-R BR-RX820 caliper provides strong and well-modulated braking. L05A-RF Resin pads with cooling fins help maintain consistent braking performance on long descents. The one-way bleeding system simplifies maintenance, and Shimano mineral oil ensures stable and predictable brake feel. The result is confident control and reliability on every gravel ride.

• Application: Gravel, Cyclocross
• Group: GRX Di2 RX825
• Model: ST-RX825-R
• Type: Dual-Control (STI), Di2
• Mount: Right
• Rear speeds: 12-speed
• Reach adjustment: Yes, with tool
• Handlebar diameter: 23.8 mm / 24.2 mm
• Brake type: Hydraulic disc brake
• Caliper: BR-RX820, Flat-Mount-R
• Brake pads: L05A-RF Resin with Fin
• Brake hose: SM-BH90-JK-SS, rear 1700 mm (shortenable)
• One-way bleeding: Yes
• Brake fluid: Mineral oil
• Recommended rotor: SM-RT64 / SM-RT70 / SM-RT800
• Compatible electric wire: EW-SD300
• E-Tube Project: Yes
• E-Tube port: 1
• E-Tube plug: 0
• Di2 wireless chip: Yes
• Battery: CR1632 x 2