SHIMANO Shimano GRX ST-RX815 Di2 Left Rear Brake and STI Set - Black

Upgrade your gravel setup with the Shimano GRX ST-RX815 Di2 hydraulic disc brake system. Designed specifically for gravel riding, this 11-speed Di2 STI set provides exceptional control, modulation, and power with minimal effort across all riding conditions. The set includes the left rear ST-RX815 2-speed STI lever, pre-bled with a BR-RX810 caliper for immediate performance. Engineered for stability on choppy surfaces, the higher brake lever axis and curved lever design improve grip and rider confidence during technical descents. The raised hood head prevents hand slippage and misalignment, while a recessed finger notch keeps your hands securely in place. With an anti-slip texture and specialized brake lever coating, this Shimano GRX component ensures high braking efficiency when you need it most.