Shimano Di2 SW-R600 Remote Climbing Shifter Dropper Seatposts Manufacturer Part Number: M129-01-BK

Manufacturer Part Number: M129-01-BK

UPC: 702082331279

UPC: 850016522023

UPC: 710845716201

- All-around/recreation saddle with signature Terry cutaway center and contoured tailbone relief

Shimano Di2 SW-R600 Remote Climbing Shifter Dropper Seatposts Manufacturer Part Number: M129-01-BKShimano 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