9-speed shifters with 2-Way release to exceed the demands of ever changing bicycle designs and riding styles2-Way release: the upper lever still performs the same shift function, but it can now swing in either direction allowing it tobe released by the thumb or index fingerMulti-Release allows the upper release lever to perform up to two shifts in one sweepMulti-bearing design uses two ball bearing units to provide a low-friction and reliable shifting actionOne piece loweralloy thumb release lever increases durability and gives sharp precise shiftsFor use with 9-speed drivetrainRemovable optical gear display allows the use of these shifters with any brake leverRaised optical gear display instantly shows you what gear you're in and allows clearance for suspension lock out clamps belowMulti-position adjustable handlebar clamp for custom lever positioningAverage weight 255 grams