Shimano Dura-Ace ST-R9170 Di2 2×11-Speed Left Shift/Brake Lever. ST-R9170 Dura Ace Di2 Shift/Brake Lever
Shimano Di2 compatible hydraulic brake levers
An updated button feel and layout ensure precise shifting while enhanced ergonomics guarantee comfort allowing you to concentrate on the effort at hand
Ergonomic brake and shift lever position with Shimanos Reach Adjust technology to suit any hand size or rider preference