In order to take account of the progress in professional sport, which not least also influences riding and grip positions, Shimano has worked closely with top athletes in the development of the current Dura Ace Dual Control levers. The result is lightweight controls that use the latest materials to provide an outstanding level of ergonomics, whether sprinting, on mountain stages or in time trials.

Specifications
Left or Right Di2 Shifter (Choose from drop-down menu)
Hydraulic Disc Brake Specific
Does not include any calipers, brake/shift lever incl. CR1632 battery
(without EW-SD300 Di2 cable)

Mfr Claimed Weight
350g