Designed with today’s taller, double-digit cog stacks in mind, Chris King's R45 cassette lock rings feature longer threads to provide secure engagement with the hub driveshell. A Chris King cassette lock ring is the perfect complement to any Chris King hub, or for anyone looking to add a dash of King performance to other manufacturer’s compatible rear hubs. They are available for both 11 and 12 tooth small cogs, as well as Shimano or Campagnolo hubs.