2.SL-TX30-6R 3.SL-TX30-7R Parts detail: 1.SL-TX30-LN SHIMANO TOURNEY - Thumb Shifter Plus - Left Shift Lever - 3x7/6-speed (friction) 2.SL-TX30-6R SHIMANO TOURNEY - Thumb Shifter Plus - Right Shift Lever - 6-speed 3.SL-TX30-7R ...