If you own a BoXXer Race, Team, RC, R2C2 and World Cup from 2010 onwards (35mm chassis), you can update your fork with the Charger DamperT Upgrade kit. The ChargerT is RockShox's most refined damper, and its sealed construction with an expandable rubber bladder ensures damping consistency, reduces vibration and is almost 100 grams lighter than the previous BoXXer damper. Adjustment is easy and intuitive, with a single compression adjuster and a beginning stroke rebound adjuster with a factory set Rapid RecoveryT tune. The internal shim stacks can be re-tuned for light or firm compression and rebound settings.