Saint Rapidfire Plus Shift levers with versatile positioning ability, optimized for 1-finger braking with crisp instant shifts.Key Features:Multi Release allows multiple gear changes from both levers with one sweep, further adding to the speed of shift,2-way release: the upper lever still performs the same shift function, but it can now swing in either direction allowing it to be released by the thumb or index finger,Instant Release for super fast shifting performance, delivering the chain to the next sprocket or ring the moment the shift is actuated with no hesitation,Multi-bearing design uses two ball bearing units to give a low-friction and reliable shifting action,Short release lever stroke for crisp shifting action,One piece lower alloy thumb release lever increases durability and gives sharp precise shifts,For use with 10-speed Dyna Sys drivetrain only,Multi-position adjustable handlebar clamp for custom lever positioning.