Shimano Dura-Ace Di2 ST-R9170 Shifter Only (Disc Brake) imp Optimizing input to maximize output

Optimizing input to maximize output

Distinct shoulder studs for excellent lateral grip

providing more long-distance comfort

sprinters and time trialists

SRAM Road 11-speed compatible

Shimano Dura-Ace Di2 ST-R9170 Shifter Only (Disc Brake) imp Optimizing input to maximize outputWith 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)