Shimano SW-R9160 ShiftersThe Shimano SW-R9160 shifters for triathlon dropouts are designed to mount to triathlon handlebar dropouts and shift between chainrings and sprockets with the greatest efficiency.Ergonomic shape, simple designThanks to its refined ergonomic shape and simple single button design, the SW-R9160 DI2 Triathlon Remote Shifter offers quick gear changes when using aero handlebars. The SHIMANO SYNCHRONIZED SHIFT program allows you to put an up or down gear into action on the rear derailleur, while the DI2 computer decides when to shift the front derailleur to achieve the optimal front and rear gear combination.