The R45 series is Chris King's response to market demand for a purpose-built road racing hubset. The R45's predecessor, the "Classic" series, was originally designed for mountain use, and merely adapted to standard road widths. Overbuilt bearing seals and the iconic ratchet system that made these hubs so popular for mountain bikers hindered their success in the road market. Reengineering of that classic design has yielded a hub set with lower seal drag, quieter operation, and a 20% lower overall weight. The R45 hubs are also available in the lower spoke hole counts popular in modern road wheel sets. As with all of Chris King's products, these hubs feature immaculate finish work; the hub shells are highly polished prior to anodizing, which yields a deep, vibrant hue to each of the ten color options.
The R45 rear hub features a beefy 16.5 mm aluminum axle with a simple, on-the-go preload adjustment. Partial disassembly and service of three of the hub's four bearings is possible without specialized tools. To fully disassemble this hub, a Chris King Hub Service Tool Kit is required. At the heart of the R45 rear hub is Chris King's patented RingDrive. This clockwork-style rachtet system features 45 teeth for fast, secure, and quiet engagement.
This version of the R45 hub is compatible with all 10 and 11 speed Campagnolo cassettes, as well as many 9 speed Campagnolo cassettes. These hubs require a proprietary Chris King lockring; an 11 tooth lockring is included, and 12 tooth lockrings are available separately.
The standard R45 rear hub is compatible with Sram and Shimano cassettes.
Chris King products are manufactured with pride and confidence in Portland, Oregon, USA. R45 hubs are covered under a 5 year warranty against manufacturing and materials defects.
We recommend that wheels with Chris King hubs be built by an experienced wheelbuilder. We are happy to provide this service, and can provide helpful suggestions in rim and spoke selections. Please contact us directly or submit a form for a custom wheelbuild here.