DT Swiss Star Ratchet Upgrade Kit Description: The DT Swiss Star Ratchet Upgrade Kit replaces or upgrades freehub internals within DT Swiss hubs as well as some hubs found onboard select Specialized bikes and Roval wheels. Features: Genuine DT Swiss part replacements Star Ratchet internals for DT Swiss Ratchet EXP freehub system Requires use of threaded ratchet removal/installation tool (DT Swiss Part # HXTXXX00N8387S) For Specialized bike model compatibility, see compatibility tab Includes: (1) 36T Fixed/threaded ratchet (1) 36T Floating ratchet (1) Ratchet spring (1) Spring washer (1) Tube of DT Swiss special grease