Shimano Di2 SW-R9160 11-Speed TT Shift Switch LEFT ONLY

LEFT SHIFTER ONLY
With a refined ergonomic shape and simple, single-button design, the SW-R9160 DI2 remote triathlon shifter provides quick shifting while riding in the aerobars. Utilizing SHIMANO SYNCHRONIZED SHIFT program, can be programmed to upshift or downshift the rear derailleur while the Di2 computer decides when to shift the front derailleur for the optimal front and rear gear combination.