RockShox Damper Upgrade Kit Charger 3.1 RC2 Crown, ButterCups ZEB A1 2021+.FEATURES:-Charger 3.1 RC2´s adjustment range is broader—with less compression damping in the LSC open position and additional support in the HSC closed position, this gives you the traction, control, and comfort you need to charge dicey lines all day.- INCLUDES full right-side internals including controls.- Compatible with Pike C1+(2023+), Lyrik D1+(2023+), and ZEB A1+(2021+).- High Speed Compression, Low Speed Compression, and Low Speed Rebound adjustments.- INCLUDES vibration-fighting ButterCups to block 20% of trail chatter.SPECIFICATIONS:-Suitable for:ZEB A1 2021+.-Area of application:MTB.