Shimano Alivio SL-M3100 2-Speed Left Hand Bicycle Shifter - RapidFire Plus Technology for Smooth Gear Shifting | Perfect for Mountain Biking & Road Cycling

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

• Rapidfire Plus Mono technology provides intuitive and simple front control that empowers riders to shift both up and down with a single lightweight and compact lever.
• Simple and intuitive single lever operation, quicker access and lighter front shifting enhances concentration