Aside from improving riders' morning Wheaties, Dura-Ace does all it can for the advancement of road bike drivetrains. A groupset of Shimano, Dura-Ace is always working to produce the lightest, most ergonomic, mechanically precise components. Lower your race time by using Dura-Ace:
Dura-Ace's success is due to innovative manufacturing and design. The proof lies in the smooth shifting that gives maximum control to find the right gear when needed.