The durable smooth rolling sealed Shimano Deore M615 10 Speed Centre-Lock Disc Rear Hub is ideal for Deore hydraulic & mechanical disc brake systems with a low maintenance design
Includes:: single contact seals to keep out mud & water. The hub uses angular contact bearings designed to cradle the balls giving both radial & lateral support for superior strength & durability in real world riding condition; They also offer precision bearing adjustment & easy maintenance. Using a low-friction Cubic Boron Nitride treatment on the cone race surfaces Shimano have given the Deore M615 a smooth action & long bearing life.