The RockShox 3.2 RC2 damper upgrade kit offers intuitive HSC/LSC controls and features ButterCups technology to make setup fast understandable and easy to communicate.New Rebound/Compression tunes that match Linear XL air spring achieves virtually silent performance keeping riders focused on the trailButterCups technology blocks 20% of high-frequency "trail chatter" to reduce hand and arm fatigueDelivers speed-sensitive control with fully independent High Speed and Low Speed Compression dampingIncludes complete right side internals