GRX’s ergonomic distinctiveness continues with its redesigned ST-RX820 Levers w BR-RX820 Hydro Calipers. Adding 12-speed shifting without any additional lever bulk the RX820 series shifters are designed for all-day comfort when using flared drop bars a gravel cycling staple. By reducing pressure points and increasing surface area your hands will feel less fatigued and you’ll be better in control as you test your limits.