The Shimano ST-R9170-R is a right-hand brake and electronic shift lever combo designed for road bikes using Shimano’s Di2 electronic shifting system with hydraulic disc brakes. It supports 11-speed setups and features a carbon fiber construction in the lever body and hood, making it lightweight and durable. The shifter is compatible with Shimano’s Dura-Ace R9150 series components and works seamlessly with front and rear derailleurs in the same series or compatible 11-speed road groups.

The ergonomic design includes Reach Adjust technology and an optimized lever shape for comfortable grip and precise control under race conditions. Its functions are customizable via Shimano’s E-TUBE Project software, allowing toggling of multi-shift functions to suit rider preferences. This model uses mineral oil hydraulic systems and SM-BH90 hoses. The ST-R9170-R is ideal for serious road cyclists looking for precise, quick shifting and reliable braking integration in hydraulic disc brake setups.