The Shimano GRX 820 Shifter and Brake set offers robust, dependable rear braking and shifting for your gravel bike, ideal for those seeking a 12-speed system's extensive gear range. The 820 Lever boasts ergonomic design, reach adjustment, anti-slip texture, and compatibility with flared bars. Paired with an RX820 flat mount disc brake, it ensures reliable, powerful stopping via a hydraulic system and two pistons, plus efficient heat dissipation for varied terrain. Upgrade your gravel bike to the pinnacle of 12-speed performance with this set.