The Dura-Ace ST-R9250 Shifter Set uses Shimano's Di2 electronic shifting technology to bring us a lightweight, reliable performance that we've come to know and love from Di2. The quick and intuitive shifting process features a clearly defined click feeling on the ergonomic shift lever, while the hood shape and unique texture optimize our grip. These particular shifters are designed for cable-actuated rim brakes and are meant to be paired with the rest of Shimano's Dura-Ace Di2 9200 drivetrain.