The Deore SL-M4100 shift levers provide light and responsive shifting for all mountain bike riding styles.Features-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 shiftingItem Specifications-Shifter Style:Trigger-Rear Der/Shifter Compatibility: DynaSys-Color:Black-Drivetrain Speeds:10