Build yourself a tough, no-nonsense rear wheel with Shimano's Deore Rear Hub. It features a quality cold-forged-aluminum shell, super durable angular contact bearings with high-polish bearing surfaces, and Shimano's excellent double contact sealing to seal out dirt and water. The freehub boasts quick engagement for lightning fast acceleration and confidence when negotiating tricky technical sections. A quick-release skewer makes wheel installation and removal a breeze.