Shimano Ultegra R8070 11s Di2 Hydraulic Disc Electronic Upgrade Kit

Introducing the Shimano Ultegra R8070 Di2 Disc Brake Groupset - 50/34 11/32. Perfect for the cyclists that wants a little bit more out of their bike. With the Di2 disc brake technology, programmed automatic motion at the touch of a button makes this groupset a highly-regarded upgrade for your bike. Perfect for winter riding, when your hands are suffering from the cold. The difference in the effort and time to actuate the shift between mechanical and Di2 is truly staggering. The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts. 

 

 

Groupset: 

 

Gear Shifters – The high-performance Ultegra hydraulic disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditions. 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 provides effortless gear shifts. Full and semi synchronized shifting programable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratio. 

 

Derailleurs – At the front is the R8050 Ultegra Di2 11-speed front derailleur E-tube, smooth shifting is guaranteed thanks to a microchip communication link with the gear levers. What's more, shifting the rear derailleur automatically trims the front derailleur. The biggest difference you will notice is just how much quicker and effortlessly smoother shifting on the front chainrings is, even under load. At the rear is the RD-R8050 Ultegra Di2 11-speed rear derailleur E-tube with a sleek appearance and Low profile Shadow design construction reduces risk of damage in a crash. 

 

Chainset – The HollowTech II 11-speed Ultegra chainset offers an ideal balance of light weight and stiffness. HollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load. 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. Industry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight. 

 

Cassette – A lightweight 11-speed HG-EV cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes. Featuring Hyperglide EV sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wear.

Contents:

* WU111 D-Fly Module is needed for e-tube project software