Professional riders have been using the Shimano Dura-Ace components with Di2 electronic shifting technology in the biggest races in the world over the past four years: over the highest mountains, in the most extreme weather conditions and over the worst possible roads and cyclo cross tracks. Now it is time to introduce this revolutionary technology into the SHIMANO ULTEGRA, making it available to a much wider group of road racers and enthusiasts.

The advantages of Di2 (Digital Integrated Intelligence) are clear for everybody who has tested it: changing gears becomes easier, effortless and faster by simply touching the shift buttons. Control at the top of your fingers. Additional benefits include an automatic trimming front derailleur, unmatched precision plus super easy installation and adjustment.

Shimano Ultegra Di2 slots in right under mechanical Dura Ace price wise and should be available late summer/early fall.

ST-6770 Dual Control Levers (10-speed, for double crank sets)
Effortless electronic push button shifting
Intuitive operation, similar to mechanical ULTEGRA
Reach adjust mechanism - fits all hand sizes
Weight: 313g/pair

FD-6770 Front Derailleur (10-speed, for double cranksets)
Fast, precise and smooth electronic shifting - even under load
Automatic trim function
Weight: 162g

Pricing Information next page >>

RD-6770 Rear Derailleur (10-speed)
Fast, precise and smooth electronic shifting - even under load
Easy electronic adjustment system
Crash saver function
Wide gear ratio - Compatible with 11-28T cassette sprockets
Weight: 270g

SM-BTR1 Battery
High performance lithium ion battery (7.4V)
Easy to assemble/remove for charging
Charging time: maximum 90 minutes
Weight: 71g


The Ultegra Di2 components and all the other electronic necessities total $1,595, or $2283 for a complete Ultegra Di2 build. The mechanical Ultegra 6700 group retails for $1,500.

For comparison, Dura Ace Di2 costs $2749 for the electronic necessities and $3927 for a complete build. A complete mechanical Dura-Ace 7900 group costs $2690.

Reports from users is that Dura Ace Di2 certainly works. It is an engineering marvel and just a joy to use. The automatic trim of the front derailleur is certainly a nice advantage. But the real roadblock is the price of $3927. So Ultegra Di2 at $2283 can really get this cool stuff in the hands of consumers. Instead of going mechanical Dura Ace, the consumer now has a choice of going with Ultegra Di2.

Riders will have to pay a weight penalty, as the new group tips the balance, according to Shimano's claimed weights, at 2,458 grams. Dura Ace Di2, by comparison, weighs in at 2,108 grams.

Some individual pricing of Ultegra Di2:

Shifters: ST-6770 Dual Control Levers -$444.99

Rear Derailleur: RD-6770 - $339.99

Electric Cable Junction: SM-EW67-A-E - $404.93