Tough & light weight 29er hub offers super smooth rolling in all environments The hub uses angular contact bearings designed to cradle the balls giving both radial & lateral support for superior strength & durability in real world riding conditions; they also offer precision bearing adjustment & easy maintenance Cone races are ground with Cubic Boron Nitride tool for high precision durability & smooth rolling Forged then anodized alloy hub shell for maximum strength & long lasting good looks 6-bolt disc rotor mount Double contact seals with internal grease sleeve to keep the elements out & the grease in Comes complete with quick release skewer Average weight 235 grams