NEW Shimano Ultegra Di2 R8100 ST-R8170 RIGHT/FRONT 12 Speed STI Shifter
NEW Shimano Ultegra Di2 R8100 ST-R8170 RIGHT/FRONT 12 Speed STI Shifter Right/rear shifter only for 12 speed Di2 electronic drivetrains and hydraulic brakes. Right/rear shifter only for 12 speedDi2 electronic drivetrains and hydraulic brakes.