Shifter & Brake Set Shimano GRX ST-RX815/BR-RX810 Di2 Right, 11-speed

Shifter & Brake Set Shimano GRX ST-RX815/BR-RX810 Di2 Right, 11-speed

The Shimano GRX Di2 ST-RX815 + BR-RX810 is a right-hand 11-speed electronic shifter and hydraulic disc brake set designed for gravel, road and cyclocross bikes. It delivers fast and precise Di2 shifting together with powerful, well-modulated braking performance in demanding conditions.

The raised hood shape, textured anti-slip surface and ergonomic finger groove enhance grip and confidence on rough terrain and descents. Improved braking input performance and a higher lever pivot help reduce hand fatigue on long rides.

• Use: Gravel, Road, Cyclocross
• Group: GRX Di2
• Model: ST-RX815
• Type: Dual-Control (STI)
• Mount: Right
• Rear speeds: 11-speed
• Optical gear display: No
• Reach adjustment: Yes, with tool
• Handlebar diameter: 23.8–24.2 mm
• Brake type: Hydraulic disc brake
• Brake caliper: BR-RX810-R
• Mount type: Flat-Mount
• Brake pads: L03A Resin with Fin
• Brake hose: SM-BH90-JK-SSR rear 1700 mm (cuttable)
• One-way bleeding: Yes
• Brake fluid: Shimano mineral oil
• Recommended rotor: SM-RT64, SM-RT70, SM-RT800
• E-TUBE firmware update: Yes
• Remote switch compatible: Yes
• E-TUBE port: 2