The Shimano Deore SL-M6100 Right Shift Lever is designed for use with 12-Speed Deore M6100 MTB drivetrains. The I-Spec EV version creates a clean and action-optimized cockpit with a wider adjustment range to suit riders of various styles, preferences, and body types RapidFire Plus technology is suited to quick shifting, giving riders the ability to downshift three gears in one stroke OT-SP41 reduces inner cable friction to provide quick response to operations and effortless shifting