Shimano GRX RX815 Di2 Hydraulic Disc Brake Shifter Set
Shimano GRX RX815 Di2 Hydraulic Disc Brake Set — Left Front • 1000mm Hose. Shimano GRX Di2 Shifter & Caliper Kit, Left/Front, 2×11-Speed, ST-RX815/BR-RX810. High-performance hydraulic disc brake assembly tuned for gravel and adventure bikes with Di2 actuation compatibility and a 1000mm hose length for front routing.