Shimano Ultegra R8170 Di2 12speed Groupset

Shimano Ultegra R8170 Di2 12speed Groupset

Regular price £2,399.99 Sale price £1,499.00
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Shimano Ultegra R8170 Di2 12 Speed Groupset Includes:

  • ST-R8170 Di2 Brake/Shifters with Brake Hoses 
  • FD-R8150 Di2 Front Derailleur
  • RD-R8150 Di2 Rear Derailleur
  • BR-R8170 Disc Brake Calipers (flat mount) front and rear
  • FC-R8100 Chainset
  • CS-R8100 Cassette 12 Speed
  • CN-M8100 12 Speed Chain
  • RT-MT800 disc rotors
  • BT-DN300 Internal Battery
  • 2 x SD300 E-Tube Wires, 1 x 750mm, 1 x 1200mm
  • EW-EC300 Battery Charger Cable

Groupset does not include bottom bracket

Select your groupset configuration from the options below

  Option 1 Option 2 Option 3 Option 4 Option 5 Option 6
             
Chainset 170mm 170mm 170mm 170mm 170mm 170mm
Chainrings 50-34 50-34 50-34 50-34 50-34 50-34
Cassette 11-30 11-30 11-30 11-34 11-34 11-34
Rotor 1 140mm 140mm 160mm 140mm 140mm 160mm
Rotor 2 140mm 160mm 160mm 140mm 160mm 160mm
             
  Option 7 Option 8 Option 9 Option 10 Option 11 Option 12
             
Chainset 170mm 170mm 170mm 170mm 170mm 170mm
Chainrings 52-36 52-36 52-36 52-36 52-36 52-36
Cassette 11-30 11-30 11-30 11-34 11-34 11-34
Rotor 1 140mm 140mm 160mm 140mm 140mm 160mm
Rotor 2 140mm 160mm 160mm 140mm 160mm 160mm
             
  Option 13 Option 14 Option 15 Option 16 Option 17 Option 18
             
Chainset 172.5mm 172.5mm 172.5mm 172.5mm 172.5mm 172.5mm
Chainrings 50-34 50-34 50-34 50-34 50-34 50-34
Cassette 11-30 11-30 11-30 11-34 11-34 11-34
Rotor 1 140mm 140mm 160mm 140mm 140mm 160mm
Rotor 2 140mm 160mm 160mm 140mm 160mm 160mm
             
  Option 19 Option 20 Option 21 Option 22 Option 23 Option 24
             
Chainset 172.5mm 172.5mm 172.5mm 172.5mm 172.5mm 172.5mm
Chainrings 52-36 52-36 52-36 52-36 52-36 52-36
Cassette 11-30 11-30 11-30 11-34 11-34 11-34
Rotor 1 140mm 140mm 160mm 140mm 140mm 160mm
Rotor 2 140mm 160mm 160mm 140mm 160mm 160mm
             
  Option 25 Option 26 Option 27 Option 28 Option 29 Option 30
             
Chainset 175mm 175mm 175mm 175mm 175mm 175mm
Chainrings 50-34 50-34 50-34 50-34 50-34 50-34
Cassette 11-30 11-30 11-30 11-34 11-34 11-34
Rotor 1 140mm 140mm 160mm 140mm 140mm 160mm
Rotor 2 140mm 160mm 160mm 140mm 160mm 160mm
             
  Option 31 Option 32 Option 33 Option 34 Option 35 Option 36
             
Chainset 175mm 175mm 175mm 175mm 175mm 175mm
Chainrings 52-36 52-36 52-36 52-36 52-36 52-36
Cassette 11-30 11-30 11-30 11-34 11-34 11-34
Rotor 1 140mm 140mm 160mm 140mm 140mm 160mm
Rotor 2 140mm 160mm 160mm 140mm 160mm 160mm

 

The Science of Speed, Shimano’s design philosophy for its latest road groups is comprised of five elements: a new Di2 platform, a refined interface, the addition of HYPERGLIDE+, a category redefining brake system, and a collection of new wheels. Here’s a quick rundown on how each of them contributes to faster, more efficient road riding.

WIRELESS WHERE IT MATTERS

Shimano's new shifting systems use wireless technology where it makes sense for both day-to-day life and ultimate performance. Freeing the shift levers from the rear of the bike cleans up the cockpit and simplifies the build process. Meanwhile, connecting the derailleurs to an internal main battery ensures absolute reliability by maintaining stable voltage while also improving Shimano's already lightning-fast shift speed that has made Di2 a staple of the WorldTour pro peloton.

REFINED INTERFACE

New Di2 dual control levers feature dramatic, all-new ergonomics and act as the wireless command center. Both DURA-ACE and ULTEGRA levers have a longer, slightly curved hood body for a more comfortable and secure grip. Shift buttons are easier to reach and differentiate with extended switches and an increased offset between them. With better access and faster shifting, you’ll always find yourself in the right gear.

HYPERGLIDE+

The backbone of these two new groupsets is the game-changing HYPERGLIDE+ shifting technology. First introduced on Shimano mountain bike groups, this unique chain-and-cassette interface smoothly guides the chain up and down the cassette for fast and precise shifting in both directions, even under extreme pedaling load.

BETTER BRAKING

Both DURA-ACE and ULTEGRA also welcome new braking systems, which are quieter, easier to maintain, and deliver superior control. Improvements start with the addition of Shimano’s proven SERVO WAVE technology. First developed for mountain bikes, SERVO WAVE provides a quick initial bite, then slows down lever force generation for better modulation.

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