Shimano 105 Rear Freehub

Shimano's 105 Rear Freehub is an excellent start to a strong, light rear wheel. The diamond-polished bearing races mean the hub rolls super smoothly and the labyrinth seals shut out dust, dirt and water. Plus, the cold-forged-aluminum hub shell is beautiful and built to last. You get Shimano's excellent quick-release skewer, too.