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The Dura-Ace name is so consistently synonymous with success, it needs no introduction. If you're thinking of upgrading to Dura-Ace there's no doubt that you know what you're shooting for—the absolute best. From the bike path to the pro peloton Dura-Ace sets the pace for the rest of the pack. With the introduction of Di2, Dura-Ace changed the face of performance cycling once again. The Shimano Dura-Ace Di2 RD-9070 Rear Derailleur utilizes state of the art Di2 electronic technology and takes Shimano's already stellar reputation to a new all-time high.
Take control with precise, lightning-fast shifts across an 11-speed cassette, whatever the conditions, with just a button click. The 9070 rear derailleur is now lighter and more compact, with E-tube connection to simplify installation and fine tune performance. Automatic crash protection moves the cage out of harm's way in the event of a spill and the sleek grey colorway goes well with any build. Smooth, effortless shifting. No compromise performance. Dura-Ace is the pinnacle of cycling performance.