Shimano Deore SL-M5100-L Shift Lever - Left, 2x, RapidFire Plus Mono, Black
Designed for use with 2x10 and 2x11-Speed Deore M5100 MTB drivetrains. RapidFire Plus Mono technology allows you to shift both up and down with a single lever. Front Der/Shifter Compatibility: Shimano Mountain.