Shimano Di2 Sw-R671 11-Speed Tt/Tri Shifters
Shimano Di2 SW-R671 11-Speed TT/Tri Shifters. These satellite TT/Tri shifters from Shimano let you literally extend your Dura-Ace or Ultegra Di2 shifting functions by adding additional shift controls to the ends of your aero extensions. You get the same, effortless, push-button shifting as you do from your Dual Control levers without having to leave your aero tuck. The Shimano Ultegra Di2 SW-R671 11-speed TT/Tri shifters fit into the ends of your aerobar extensions and are compatible with Dura-Ace Di2 11-speed systems as well as Ultegra Di2 10-speed E-tube electronics.
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