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

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

The Shimano GRX Di2 ST-RX825 is a right-hand 12-speed electronic Dual Control STI shift/brake lever designed for gravel and cyclocross bikes. The new-generation GRX Di2 system combines ultra-precise electronic rear shifting with powerful hydraulic disc braking, delivering maximum control on technical gravel and steep descents.

For gravel riders, braking reliability and sufficient power reserves are essential. The ST-RX825 provides excellent braking power and modulation, helping maintain stability in demanding and unexpected situations. Wireless Di2 connectivity reduces cable clutter and creates a cleaner, easier-to-manage cockpit. Adjustable lever reach allows riders to fine-tune ergonomics for optimal comfort and control.

• 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
• Cable port: Straight
• Recommended hose: SM-BH90-JK-SS
• Recommended caliper: BR-RX820
• Recommended rotor: SM-RT800 / SM-RT70 / SM-RT64
• 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