rear shock service kit does not included air can seals monarch plusThe original RockShox Monarch Plus service kit is a complete rear shock maintenance kit. It doesn't include air can seals , but it does cover the other key components required for rebuilding. Regular maintenance ensures optimal damping, extended shock life, and smooth operation on the trail . Product features: Complete service kit includes all necessary components for regeneration (air can gaskets not included) Compatibility Designed for RockShox