VeloNews | Shimano’s electronic Dura-Ace

Shimano has formally announced plans to release Dura-Ace Di2, a new electronic shifting option for the all-new 7900 series Dura-Ace, in January.

Composed of dual control shift/brake levers, front derailleur, rear derailleur, a wiring harness and battery pack, the new Dura-Ace Di2 7970 components integrate with components from the upcoming 7900 series Dura-Ace group, while adding only 68 grams.

Electrically actuated shifting eliminates cable friction and contamination. The shifters are now merely switches, which also allows for creative placement of optional remote shifters while reducing the weight and profile of the main shifting units. For example, a rider could place remote switches out on the ends of aero bars as well as on the top of drop bars near the stem.

Derailleur movements are computer-controlled and servo motors in both front and rear derailleur create synchronized shifts.

You know, because manual shifting is so difficult.

When Mavic tried this 10 years ago, they had no end of problems with their Zap and Mektronic systems. Knowing their thoroughness of design, I’m sure that Shimano has worked out all of those kinks, but I still just don’t see the point.

Shimano Dura-Ace Di2

Although, I have to admit, with the exception of the battery pack, the stuff sure does LOOK sexy.

But I’ll stick with Campagnolo, unless someone feels like putting a full SRAM Red kit (along with some Reynolds carbon wheels) into my hot little hands.