The Shimano Alivio SL-M3100 Left Shifter provides responsive rear shifting for 9-speed mountain bike drivetrains.

• Rapidfire Plus technology is suited to quick shifting, giving riders the ability to downshift three gears in one stroke
• Optical gear display is positioned below the handlebar and indicates gear position at a glance
• Double or Triple: Triple
• Front Der/Shifter Compatibility: Shimano Mountain
• Shifter Style: Trigger
• Drivetrain Speeds: 9