The Ohlins service kit for their suspension fork air spring cartridges includes common wear items to perform the 100 hour/standard service.Standard service kit (also known as the "100-hour" kit) for the 2-chamber "more traditional" air spring found only on the RXF34 m.2 forkDesigned to be used for use routine serviceIncludes the seal head circlip, and the dynamic seals (X-ring, backup rings, etc.) Ohlins 100 Hour Air Spring Service Kit Service Kit UPC: 840153623745