WHY WE MAKE THIS Chris, our founder and spiritual guide, the King himself, is really, in his heart-of-hearts a mountain biker. We make this hub, because it's spiritually imperative that we do so, to honor the dirt that has given us so much inspiration, and to keep Chris happy. WHY YOU WANT IT Our Boost Centerlock front hubs use one-piece axles to provide a stiff hub with rail accurate steering. To keep mud and water out of the works they have heavy-duty bearing seals and snaprings that provide superior protection with ultra-low drag. Each one is like a rolling dream of trail riding performance. Our bearings, both steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously to ensure perfect matching. The quality and speed of our bearings is what you will feel (and hear) on every ride. As Chris King bearing tracks burnish they get actually get faster. A little bit of regular love (i.e. service) will keep this hub rolling for years upon years of demanding use. - Ceramic Bearings - Engineered, manufactured, and assembled in Portland, Oregon USA - King Lifetime Warranty - Wide flange placement - Fits 110x15mm Boost - Legendary made-in-house bearings - Easily serviceable with a T10 Torx and pick or pen knife - Completely re-buildable with our Universal Hub Tool - Available in 24, 28, and 32 hole spoke count HUB SPECIFICATIONS - Axle Width: 110mm - Flange Diameter DS & NDS: 57.4mm - Center to Flange DS: 35.5mm - Center to Flange NDS: 27.5mm

A lightweight Campagnolo compatible hubset designed expressly for the demands of road racing. Light The R45 hubset is 20% lighter than King's Classic hubset at 328g. They designed sleek new hubshell bodies and new 17 mm axles. That's 17 mm from dropout to dropout resisting deflection during cornering or when the power is full on. Chris King designed a driveshell with a twin bearing design that responsibly removed as much weight as they could from the inner components. Even their patented RingDrive engagement system was redeveloped resulting in a quiet, fast-engaging 45-tooth stainless steel system unique to the R45 rear hub. All of this comes with the standard Chris King 5-Year Warranty and is compatible with Campagnolo 9,10 and 11 speed drivetrains. Lock Rings The R45 for Campagnolo comes standard with an 11-tooth lock ring which is required for use with the Chris King driveshell. An optional 12-tooth lock ring is also available at your favorite shop or directly from Chris King. Fast Chris King designed and built a bearing specifically for the R45 hubset. As with every King bearing, these stainless steel sealed bearings are made in-house in Portland, Oregon and individually hand-checked for precision and smoothness. Chris King's proprietary bearing design allows them to place more rolling elements per bearing meaning greater durability and precision. R45 bearings also feature lightweight, low-friction seals for fast rolling and can be easily serviced at regular intervals using only a single 2.5 mm hex wrench and penknife. R45 Options: Ceramic Bearings - Made in-house Chris King makes their own ceramic bearings and theye build them to the same exacting standards as their classic, time-tested stainless steel ball model. Pairing the corrosion resistance of ceramic balls with Chris King's proven sealing system allows for greater flexibility with greasing options. Chris King builds their ceramic bearing R45 hubs with a very small amount of silicone-based lube for a system with very low drag. Take advantage of Chris King's user-serviceable bearings and change to a dry lube for the ultimate in race-day performance. Stainless Steel Bearings - Made in-house The R45 Campagnolo hubset also has the option of stainless steel sealed bearings. As with every King bearing, these bearings are made in-house in Portland, Oregon and individually hand-checked for precision and smoothness. Hubshell Drillings R45 front hubs are available in 20, 24, 28 & 32 hole options. R45 Campagnolo rear hubs are available in 24, 28, & 32 hole options.