A true shifting and disc brake system for the next generation race bike, the Shimano Dura-Ace ST-R9120 Hydraulic/Mechanical Shift Lever and BR-R9170 Hydraulic Disc Brake Caliper will propel you to the next level. The Mechanical Dual Control Lever features a refined hood shape with svelte shared ergonomics for more rider control in race conditions. The ergonomically-enhanced shift levers now produce a more defined shift click for a more intuitive feel and quicker shifting operation. The Dura-Ace 9170 hydraulic disc brake caliper was redesigned for the highest level of road performance. Utilizing a lightweight and minimalistic Flat Mount design, the R9170 caliper features stopping power ideally tuned for road applications. Includes Shifter, Housing, Caliper, and Resin Pads. Disc Rotor sold separately.