The Dura Ace is Shimano's lightest, most ergonomic and most precise component group ever. It not only offers the finest mechanical performance, but also serves as a chassis for the revolutionary digital Di2 shifting system. The additional 11th gear and numerous other improvements allow for truly dominant performance. With Dura Ace you win.
- 11-speed drivetrain enables precise, racing gearshifts - Newly developed crankset with a 4-arm construction - Internal draw system reduces sliding resistance - More effective braking with new SLR-EV braking system
Polymer-Coated Cable Polymer coating results in a smaller surface area that rubs against the inner casing cladding. Grease is also kept longer. The main advantages are a considerably lower effort required for shifting and the feeling of faster shifting operations, as well as more braking power with considerably less effort required at the brake lever.