Shimano Dura Ace R9170 Disc Di2 11 Speed Groupset Builder
The DURA-ACE Di2 groupset is the result of Shimano’s ongoing passion for technology. This is reflected in every single component in the groupset. All components are joined together to work as one, reinforcing each other for unparalleled performance.
For the new DURA-ACE Di2 groupset, Shimano have improved upon each and every individual component. Together they form a truly superior groupset. A perfectly balanced total system. Improving performance by maximising efficiency: that’s how Shimano are able to ensure the best for cyclists with the highest demands.
In addition to traditional “Full” Synchro Shift, riders can optionally select “Semi” Synchro Shift. This intuitive new mode automatically reacts when the rider shifts from one chainring to another, automatically shifting the rear derailleur to minimise the gear step, thus preserving the rider’s rhythm.
Groupset Specification:
  • Chainset: Dura-Ace R9100, 170 and 172.5mm cranks, with 34/50, 36/52 and 39/53 ring options
  • Brakes/Shifters: Dura-Ace Di2 R9170 Hydraulic Disc 2×11 (Choice of hose lenghts)
  • Front Derailleur: Dura-Ace Di2 R9150 – Braze On
  • Rear Derailleur: Dura-Ace Di2 R9150
  • Cassette: Dura-Ace R9100 11-28 and 11-30 options
  • Chain: Dura Ace CN-901 – 116 Links
  • Internal seatpost battery and charger included.
  • Cables Included: 2x 350mm, 1x 300mm, 1x 650mm, 1x 700mm, 1x 1000mm
  • Di2 Junction Boxes Included: SM-JC41, SM-RS910 – Optional EWRS910F (In-Frame junction box) or EWS910H (Bar-End junction box)


Items include:

  • Dura Ace ST-R9150 Dual Control Levers
  • Dura Ace BR-9170 Disc Brakes F/R
  • Dura Ace SM-RT900 Disc Brake Rotor F160/R140
  • Dura Ace RD-R9150 Rear Derailleur
  • Dura Ace FD-R9150 Front Derailleur
  • Dura Ace FC-R9100 172.5 52-36
  • Dura Ace BB-R9100
  • Dura Ace CN-9000 11s 116L
  • Dura Ace Cassette Sprocket 11-30T 11s
  • Shimano Di2 RS910 Junction
  • Shimano BT-DN110 internal battery
  • Shimano Charger SM-BCR2
  • Shimano wire cables x 6
  • Approx. weight: 2.37kg
  • Made in Japan

A 2 year warranty is offered with all Shimano products from S2HCYCLE (3 years on Dura-Ace and XTR products).
Buy Shimano Components from S2HCYCLE, the World’s Cheapest Online Bike Store.

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