Raise your confidence and your Rockshox 38mm chassis fork’s performance with a Lift Damper upgrade. Lift Damper cartridges are easy to install and provide an immediate performance upgrade.There are five tunes offered for the Lift, matching rider weights from 50 - 122.5 kg (110 - 270 lbs). Weight-specific shim-stacks provide riders with perfectly matched damping and full usability of the external rebound and compression adjustment ranges.Valving has been optimized to deliver a seamless crossover from the low to high-speed circuits and provide a predictable and responsive terrain-hugging ride. Flow-path optimization and advanced needle shaping have minimized fluid turbulence, yielding quiet operation and superior sensitivity. Through a careful reduction in dynamic seals and by utilizing the latest bushing material from industry-leader IGUS, stiction has been virtually eliminated.Compatible with RockShox Zeb (R, RC, Select, Select , and Ultimate Models)Cartridge format provides simple installation – no specialty tools needed.Five rider weight-based tunes: White (50 - 68 kg), Yellow (64 - 82 kg), Green (77 - 95 kg), Blue (91 - 109 kg), and Red (104 -122.5 kg).12 clicks of external low-speed compression and rebound adjustability.Extremely low-friction IGUS “E” main bushing.200 hour service interval, user serviceable.