Additional Di2 shifter specifically for TT/triathlon bars. The revolution of shifting. Direct, fast and precise. The two-button operation minimizes movement and maximizes the aerodynamic efficiency. There are no additional cables needed.
Note: In order to ensure proper functioning of the electronic Di2 drive system, all components require the same firmware version. The optional diagnostic device allows for reading out or updating the firmware version. An operation of components with different firmware versions may cause a malfunction or loss of function.
Compatible with Shimano Dura Ace Di2 (2x11-speed) and Shimano Ultegra Di2 (2x10/11-speed).