|Bearing Size||proprietary hybrid ceramic|
|Axle Diameter||17 mm|
|Available Drillings||20, 24, 28, 32 hole|
|Available Colors||black, brown, red, silver, gold, |
|navy, pewter, mango, green, pink|
|Wheel Building Dimensions|
|Flange Diameter||39.8 mm|
|Center to Flange||34.8 mm|
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 patently loud 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 front hub features a super stiff 17 mm aluminum axle for superior performance under the lateral stresses that are encountered in cornering and hard sprints. The bearings are fully serviceable using simple tools. Detailed service instructions are included.
These special R45 hubs are equipped with low friction hybrid ceramic bearings; developed, tested, and manufactured in-house at Chris King Precision Components. Built to the same high quality standards as their stainless steel bearings, these bearings are filled with a minimal amount of low viscosity, silicone-based lubrication for the lowest possible drag and best possible race-day performance.
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.