The Chris King R45 Rear Road Hub features an all-new 45-point engagement Ring Drive designed specifically for road riding. While still having nearly double the points of engagement as other high-end hubs, reducing the points in the R45 from 72 means the hub will still have the distinctive Chris King sound but won"t be nearly as loud as you would expect.Full-length, 17-millimeter axles provide stiffness and strength, and resist deflection forcesUltra-low 215-gram weight puts these hubs in a league of their ownA variety of drilling options, and radial lacing compatibility, allow you to build up any kind of wheel you want