Shimano Dura-Ace Di2 ST-R9170 Shifter Only (Disc Brake) BPW rigid container optimized to fit

rigid container optimized to fit standard bottle cages

whilst the design elements take inspiration from the aerodynamics of the brake and are enhanced by the new sealed structure of the brake levers themselves

Specialized Alloy OSBB

one of science's most accurate and innovative projects to detect subatomic particles moving at the speed of light

Shimano Dura-Ace Di2 ST-R9170 Shifter Only (Disc Brake) BPW rigid container optimized to fitWith a compact overall shape, the DURA ACE R9170 levers bring both SHIMANO's praised hydraulic disc brake technology and the category leading DI2 electronic shifting in a package ready for the most demanding of race situations. An updated button feel and layout ensure precise shifting while enhanced ergonomics guarantee comfort, allowing you to concentrate on the effort at hand. Specifications Left or Right Di2 Shifter (Choose from drop down menu)