Shimano Di2 SW-R600 Remote Climbing Shifter. Shimano SW-R600 Di2 Remote Climbing Shifters

• Unit is designed to be mounted on the right-side top section of a drop bar adjacent to the stem
• Proper placement allows the rider to shift the rear derailleur up or down with the right thumb while in a climbing position
• All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
• Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/