2012 Shimano Ultegra 6770 Di2 Sub-Group (Di2 Upgrade Kit)

2012 Shimano Ultegra 6770 Di2 Sub-Group (Di2 Upgrade Kit)
Brand: Shimano
Product Code: gr09
Availability: In Stock
Price: $710.00
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Product Description

2012 Shimano Ultegra 6770 Di2 Sub-Group (Di2 Upgrade Kit)


Shimano unveils the 2012 Shimano Ultegra Di2 components to complement the Shimano Ultegra 6700 series. It's also fully compatible with Shimano 5600, 5700, and 6600 components!  Shimano Di2 stands for Digital Integrated Intelligence, an electronic shifting option.  This innovative shift technology is still based on the Shimano Index System. The big difference is the shifting action is electronical instead of mechanical. Shimano developed Ultegra Di2 to keep it user-friendly and easy to use. The Ultegra Di2 cable configuration only requires 2 cables instead of 4 at the cockpit like you see on the Dura Ace Di2 cables. The setup is more versatile to meet the frame specifications of most road bikes. All other wires are interchangeable and "plug and play".  Shimano uses part number SM-SD50 to designate the electrical wires mated to the Junction Box. 
Once installed, you will see why so many pros are using Di2.  Shimano has eliminated all the problems that can plague shifting performance.  You'll love how easily the components are in sync to offer impeccable shifting at a press of the button.  The days of mis-shift and cable stretch are gone.  You get perfect shifting every time! 
Composed of  Ultegra Di2 STI shift/brake levers, front derailleur, rear derailleur, battery, battery mount and wiring harnesses, the new Ultegra Di2 6770 components allows you to have the latest technology at the perfect price-point. 

Shimano Di2 Dual Control Levers
Shifting is executed by pressing a button. No power is needed anymore to shift. You can keep a tight grip on the handlebar and concentrate on riding instead of when shifting. The shift system allows accurate and effortless shifting in difficult circumstances like cold hands or when you are completely exhausted. Furthermore, the shifting performance will never be affected by contaminated or stretched cables since the shifting signal is transferred electronically.

The operating buttons work similar to mechanical Dual Control Levers so you don't need to re-program your mind for a new system. The ergonomic bracket shape provides a greater degree of ergonomics and control for a variety of riders. An optional satellite switch allows shifting from multiple positions on the handlebar. The Dual Control Levers also features a reach adjustment mechanism which is perfect for people with smaller hands.

Shimano Di2 Front and Rear Derailleurs
Just pushing the button will shift the front derailleur completely effortless and smooth, even under high load. An additional feature is the automatic trim function. The chain guide moves automatically in response to the setting of the rear derailleur.  The rear derailleur offers remarkable quick and smooth shifts. It has a wide gear ratio, and the electronics are well protected from heavy impacts such as crashes.



  • Shimano Ultegra Di2 STI brake-shift levers (standard option)
  • Shimano Ultegra Di2 front derailleur (Braze-On or Clamp-On option)
  • Shimano Ultegra Di2 rear derailleur (standard options -  See diagram below)
  • Shimano Ultegra Di2 Battery
  • Shimano Ultegra Di2 Battery Mount (External Long Di2 battery mount attaches between bottle cage and frame. Short mount is designed for framesets with a dedicated Di2 battery mounting location and Internal Long Di2 batter mount is for a frame with Internal Di2 routing.  See diagram below)
  • Shimano Ultegra Di2 front STI Harness wiring kit (one STI wire kit fits all road bikes -  See diagram below)
  • Shimano DownTube Wiring (Junction Box to Front STI Harness connectors.) (select correct length based distance between junction box and front harness connectors plus 100mm- See diagram below)
  • Junction Box (Choose Internal or External - See diagram below)
  • Shimano Ultegra Di2 rear derailleur wire kit (select correct length - See diagram below)
  • Shimano Di2 Battery Charger with power cable

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