Shimano Dura-Ace

The Shimano Dura-Ace range is Shimano's lightest, most ergonomic, and most precise set of components ever created. It delivers fast, reliable performance and also serves as the core to the revolutionary Di2 shifting system. Every part of Dura-Ace series is available to upgrade, from their incredible low weight wheelsets, to entire Di2 groupsets. When you're riding Dura-Ace, you're riding to win.