SL-M3100-R SHIMANO ALIVIO - RAPIDFIRE PLUS - Right Shift Lever - Clamp Tape - 9 Speed The SHIMANO ALIVIO SL-M3100-R shifter provides responsive backshift for 9-speed mountain bike drive. The Rapidfire Plus lever is suitable for fast shifting and gives riders the ability to switch down three gears in one stroke. Faster lever access and easy operation. Switches max. 3 gears simultaneously (main lever) optical gear indicator for highly visible gear position.