Shimano Dura Ace Di2 R671 Tri Bar End Shifter

No need for time trialists and triathletes to choose a shifter position - with Di2 multiple shift controls are possible. Use Dual Control levers on the base bars and satellite controls on aero extensions. The controls work together - shift from base bars or in the aero position, instantly.

Multiple control positions mean shifts are always close at hand

Fast, accurate, effortless shifts

Double controls on aero bar shifters