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July 4, 2013
This week Shimano released their much anticipated Ultegra Di2 11 speed which incorporates their Dura Ace 9070 series technology. Not only that, they also released new Ultegra wheelsets and cyclocross & hydraulic road disc brake componentry. This may be another example of Shimano’s Ultegra groupset leading the way with new product designs eventually to trickle up to their Dura Ace flagship groupset.
If you’re familiar with Dura Ace 9070 Di2, you’ll be happy to know that all its refinements and features trickles down to the new Ultegra 6870 in this upgrade:
Improved Ergonomics for better comfort and control
Additional Triathlon/ TT Spec for Shifting at both Aero Extension and Base Bar.
Precise, smaller motor creates a fast, smooth, silent and accurate shift on both chainrings, every shift.
Customisation and programability:
Cyclocross & Onroad Disc Brakes
Mountain bikes and nearly every other wheeled vehicle on earth have been using disc brakes for years. It’s no secret that they perform better than a calliper brakes. Some pockets of cyclocross have been quick to adopt disc brakes at the professional and recreational level, but it remains to be seen how they’re received in the road market. Advantages include later braking into corners and more consistant braking in poor weather conditions.
In the new R785 series Di2/hydraulic disc brake system, Shimano Ultegra Di2 electronic shifting is utilized, while ICE Technologies hydraulic disc brake heat management systems integrate aluminum materials in disc brake rotors and disc brake pads to radiate out heat by up to 200 degrees to ensure consistent, dependable braking performance regardless of conditions.
For more information, go to Shimano’s Ultegra Di2 website.