• GRX Di2 ST-RX815 11 speed shifters/brake levers and flat mount BR-RX810 hydraulic calipers
• Anti-slip brake lever increases control on bumpy terrain
• Raised brake lever pivot point increases leverage from the hoods
• Adjustable free stroke and lever reach
• ServoWave action reduces freestroke and progressively increases brake leverage
• Compatible with 11 speed Di2 GRX and road derailleurs
• Forged aluminum BR-RX810 calipers
• Pre-assembled with SM-BH90-JK-SSR high power hose