Shimano Ultegra Di2 10 Speed Gear Shifter

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The Shimano Ultegra Di2 makes shifting easier and more precise than ever before with just a light touch you can instantaneously select the correct gear, with ergonomic design for maximum comfort and control.

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With Shimano Ultegra Di2 control is at your fingertips. For the past four years, pro riders have used Dura-Ace with Di2 technology and now, new for 2012 Shimano extend this innovation to their Ultegra set. Changing gears becomes effortless and super-speedy, all through the touch of a button. Ride cobbles, tarmac and mud and you'll experience shifting performance like never before with this ground breaking Di2 technology.

These Shimano shifters give you the edge over your competition. With just the flick of a finger you get faster, precise and multi-precision shifting performance. Built upon the experience of countless professional cyclists you can rest assured that if it works for them, it will work for you. One click and the right gear is engaged instantaneously, amazingly fast it can make all the difference in a sprint where a fraction of a second can mean the difference between winning and coming in second best.

By removing traditional mechanical cables and replacing them with electrical wires, Di2 eliminates the poor shifting which is so often caused by contaminates, corrosion and stretching. Simply by pressing tactile buttons you get effortless, comfortable gear shifts even when hands are cold. Worried they might take some getting used to? Don't be. The buttons on these Shimano Ultegra Di2 10 Speed Gear Shifters are located in a near-identical place to the positions you'd assume for shifting using mechanical STI. What's more, the levers have been ergonomically designed to give you maximum control, precision and comfort and the distance between the lever and the handlebar is adjustable, making it extremely easy to brake and shift even for riders with smaller hands.

Get intuitive shifting with less effort, more speed and more precision with these outstanding electronic shifters. Make sure you check out the complete Shimano Ultegra Di2 set for all you need for the next generation in shifting performance. Order online and we'll give you 10% off as well as delivering to your door completely FREE of charge!


  • 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
  • The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates, corrosion and stretching, and also provides effortless gear shifts
  • Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold
  • Buttons are located in a near identical place to the positions you'd assume for shifting using a mechanical Shimano STI
  • Brake lever pivot is positioned to be used with super SLR brake callipers, increase power providing excellent ergonomics when riding on the hoods
  • Finely tuneable reach adjusters for the levers enable custom fitment for all hands
  • Levers are supplied without electrical cables, as these need to be ordered separately to suit
  • Weight is 313 grams a pair

Customer reviews

Professional reviews

Professional Review for Shimano Ultegra Di2 Gear Shifter

Shimano's more affordable electronic gear shifting system will fit any frame - those with internal wiring, and thanks to a version with an external wiring kit, tested here, those without. Shift performance is on a par with a well-sorted and maintained mechanic groupset, but what sets UDi2 apart is its functionality. The front mech avoids rub by self-adjusting to whatever chain line you are running. The rear shift is quick and spot-on every time. It's also better at handling loads than mechanical setups: get caught out on a short, sharp climb where you'd hesitate to shift on a cable-operated mech and UDi2 gets you out of trouble without losing the chain. And if things get noisy, simply engage the maintenance mode and use the +/- buttons to adjust the mechs in 0.3mm increments. We're hugely impressed, though it's not perfect. Multiple shifts require multiple button presses - we'd prefer to hold the button and sweep down the block. Also, the shift buttons are really close together so it can be difficult to judge whether you're on the right one when you're wearing thick winter gloves, leading to occasional mis-shifts. As for run-times, the Li-Ion battery has consistently provided power for over 600 miles of riding. Charge time is around two hours and the control box indicates full/half/quarter or less charge as power drains. The first to stop when charge is low is the front mech, which takes more power to move, but you get plenty of warning so you can shift into a suitable get-home gear. Making the upgrade is worthwhile, especially if you're in the market to replace your gears. You don't need every component, jut the Di2 parts, and they'll work just as well with Ultegra or any other 10-speed Shimano components. 

8/8/2012 10:31:19 AM | Guest User

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