Shimano 6870 Ultegra Di2 groupset lets you experience the power, speed and efficiency of electronic shifting. It's race proven and incorporates all the new technology from it's bigger brother (Dura Ace) into a more affordable package.
The HollowTech II 11-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders. Available are various chainset sizes with various crank lengths and cassettes. The chainring teeth have been developed to work in conjunction with 11-speed HG-EV chains for increased contact to provide greater efficiency and improved power transfer
The lightweight 11-speed HG-EV cassette, with rigid alloy sprocket carrier for reduced weight, offers exceptional shifting performance, even under the most demanding gear changes. Various options of cassette sizes are available for the options shown on this page.
Precision-engineered Ultegra STI levers with carbon levers offer powerful braking and effortless 11-speed shifting, making them the ideal choice for both enthusiast and competitive riders. The shift cables are routed under the bar tape: re-development and positioning of the internal mechanism in combination with Polymer coated cables have made this possible, providing faster, lighter and smoother shifting
With Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear. Programed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift
The power house of Shimano Di2 is a long-life 7.4V Li-Ion battery that is both compact and reliable, taking shifting effort away from you. Excellent sealing and reliability have been proven through repeated field tests in various riding conditions, including extreme temperatures, rain, mud, and cobble stone roads.
Using a hard wired battery system which is both light weight and accurate compared to current wireless technology (as a wireless system would require 4 batteries: one for the RD, one for the FD, and one for each shift lever).
A groupset is a matched set of components from a single manufacturer that are designed to work well together. If you are upgrading your existing bike or specifying a new one, you can usually save money by buying a groupset rather than the individual parts. Pay close attention to whether all the parts will fit your frame - particularly the front derailleur. Most groupsets don't include hubs or pedals but there are many different configurations so read the component list carefully.
Shimano are the makers of the world's most well known cycle component brand. Established in 1921 when the first cycle freewheel was forged. Shimano produce drivetrains, wheels, pedals, shoes, cycling apparel and pretty much every Shimano cycle accessory you can think of! Famous for their top end products ridden by the pro's, Dura-Ace and XTR, which cover both road and MTB's. At Shimano, they're doing everything they can to respond to heightened environmental concerns. Shimano are proud to be a producer of bicycle components that help people to enjoy outdoor sports and interact with nature through healthy nonpolluting activities. In their 87 plus years of existence Shimano have accumulated a wealth of technology and product development and expertize that serves as the driving force behind their continually evolving product line.
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Executive Director: Stefan Barden.