Introducing RockShox Signature Series Generation Service Kits! Signature Service kits are meant to simplify bike maintenance and reduce the amount of kits you need to buy. Previously, there were up to 11 kits per model; now, there is one. 200-hour / 1-year service kit Includes Dust Seals, Foam Rings, O-Ring Seals, Sealheads Compatibility: The Zeb Signature Series Service Kit is compatible with the following: Model Year: 2021 or later Generation: A Fork Model: Zeb Select Zeb Select+ Zeb Ultimate