In addition, the EW-WU111 can be purchased. In conjunction with the BT-DN110 battery, it is possible to transfer Di2 gear position, battery life, as well as some other common rider data functions to tablets or smartphones. 

The Dura-Ace 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. This is how Dura-Ace achieves ultimate supremacy. 


Dura Ace FC-R9100 Compact Crankset

The FC-R9100 HollowTech II crankset's shaping improves upon Dura-Ace's iconic 4-arm design, adding strength and rigidity while minimising weight. Shimano's Rider Tuned gearing offers a number of chainring configurations with a singular BCD for ease of use and versatility. Through redesigned chainring tooth profiling, the Dura-Ace R9100 crankset is adapted for the latest disc brake frame designs without the need to increase q-factor. 

  • Enhanced design saves 7g while maintaining rigidity
  • Iconic 4-arm construction
  • Optimised crank arm design strengthens key stress zones
  • New chainring tooth profile is adapted for race bike specific disc brake systems
  • Accommodates shorter chainstays (410mm) with 135mm OLD
  • HollowGlide chainring construction

Dura Ace FD-R9150 Front Derailleur

The front derailleur cable routing has been adjusted to further reduce shift force. The precise and easy front derailleur set up offers more cable routing options and integrated cable tension adjustment. Shimano Synchronised Shifting 

With Synchronised Shift enabled, it is possible to control both derailleurs with just one shifter. With full Synchronized Shift, the front derailleur detects the position of the rear derailleur and automatically shifts to the most efficient gear for the best chainline, so you never have to worry about front shifting or correction shifts again. 

While semi-Synchronised Shift enables you to shift the front derailleur manually, allowing you optimal more control in choosing the best gear combination for your style of riding. The system automatically takes care of the necessary correction by shifting into the right rear gear for the best chainline. 

Synchronised Shift is completely compatible and customisable with E-tube. 

Chain stay angle: 61-66° 

RD-R9150 Di2 Rear Derailleur

Front (FD-R9150) and rear derailleurs (RD-R9150) incorporate these new cockpit functions. Both electronic derailleurs are compact and designed to protect the shifting operation in the event of a crash. The low profile of the rear derailleur also comes with Shimano Shadow RD technology, positioning the derailleur further below the functioning sprocket. 

Dura Ace Di2 ST-R9170 STI

The hydraulic Di2 ST-R9170 Dual Control levers feature a refined hood shape with svelte shared ergonomics for more rider control in race conditions, which is expanded by an optimally balanced hydraulic brake system. The ergonomically-enhanced Di2 shift levers produce a more defined shift click for a more intuitive feel and quicker shifting operation and expanded E-Tube customisation allows every switch the option to independently turn on or off multi-shift. Thanks to the customizable function the levers fit any riding style and the carbon composite plastic hood material drops the weight of the whole construction. 

Dura Ace BR-R9170 Hydraulic Flat Mount Disc Brake Caliper

The all-new Dura-Ace hydraulic disc brake caliper was redesigned for the highest level of road performance. Utilising a lightweight and minimalistic Flat Mount design, the R9170 caliper features stopping power ideally tuned for road applications. The new RT900 rotor offers even greater heat management capability than Shimano's SM-RT99 industry-leading ICE Technologies Freeza rotors, resulting in unparalleled braking performance and reliability in the most demanding conditions. 

Compatible with 28C tires. 

Dura Ace CS-R9100 Cassette

Gears to match your riding style as well as your chosen terrain with Shimano's new rider-tuned cassette sprockets. The new lightweight titanium 11-speed cassettes are available in various sprocket combinations, including the new 11-30T version. Fast, accurate and smooth shifting is guaranteed in all situations. 

  • Rider tuned
  • Wider gear combination: 11-28T/12-28T
  • Closer gear combination: 11-25T/12-25T
  • Lightweight

Shimano XTR / Dura-Ace CN-HG901-11 Chain 11-speed

Shimanos premium 11-speed chain delivers better performance for mountain bikers. The CN-HG900-11 uses a HG-X11 special asymmetric plate design and Shimano's new SIL-TEC surface treatment. 

The EW-WU111 is the successor version of the EW-WU101, in a new Design. 

The Di2 wireless unit is a compact wireless data transmitter. It easily plugs into the E-tube wiring system and seamlessly connects Di2 equipped bikes to a compatible wireless cycle computer. Shimano D-Fly transmits data through a proprietary private ANT wireless protocol and allows riders to monitor Di2 gear position, battery life, as well as some other common rider data functions. The Di2 Wireless Unit is powered by the same Di2 battery that powers the Di2 shifting system. It is compatible with ANT+ devices like the Shimano Action Camera CM-1000 or the PRO SCIO ANT+ cycling computer. 

EW-WU111 Di2 D-Fly ANT+ Wireless Unit

One feature on the EW-WU111 is a wireless Bluetooth connection to Shimano's E-TUBE program, which is the system Shimano uses to set up and control the Di2 shifting behaviour. Through Bluetooth technology riders or mechanics can wirelessly communicate with the EW-WU111 wireless data transmitter unit via a computer, tablet or a smart phone. As well as allowing wireless workshop customisability, it allows riders to customise their shifting preferences on the trail via an app on their smartphones. 

Wireless Connections

Smart phone: Bluetooth wireless connectivity through E-Tube Wireless App; Functions: Drivetrain customisation, firmware update 

Tablet: Bluetooth wireless connectivity through E-Tube Project Wireless App; Function: Drivetrain customisation, firmware update, error check, pre-set 

Shimano Di2 EW-RS910 Junction

The EW-RS910 can be installed in the bar-end or in the frame. It offers an interface for charging the battery and a charging indicator. With the button of the EW-RS910 and the X and Y switches of the STI, the front and rear derailleur can be adjusted. 


Material aluminum, titanium, carbon
Weight approx. 1960 gram (rear derailleur, front derailleur, dual control levers, brakes, crank 50/34, cassette 11-25, chain)
Derailleur 2x11-speed
Included in delivery without cable housing
Proper computer SC-MT800
Crank length (mm) 165 mm | 170 mm | 172,5 mm | 175 mm | 177,5 mm | 180 mm selectable
Chainwheel, number of teeth 55-42 | 54-42 | 53-39 | 52-36 | 50-34
Front Derailleur Braze/Clamp brazed-on
Derailleur max. number of teeth 55 teeth
Bracket BSA/ITA not included - recommended: Shimano BB-R9100 (threaded) / BB-R9100-PB (PressFit)
Bracket, profile of axle Hollowtech II
Derailleur short/long short
Derailleur max. number of teeth 30 teeth
Capacity of derailleur 35 teeth
Nuance of sprocket / Gearing 11-12-13-14-15-16-17-19-21-23-25
Material of sprocket CFRP & alloy spider arm, 5 titanium sprockets for lightweight performance
Hubs not included
Pedals not included - recommended: PD-R9100

What's in the Groupset?

Shimano Dura Ace FC-R9100 Crankset 2x11
Shimano Dura Ace FD-R9150 Front Derailleur 2x11
Shimano Dura Ace CS-R9100 Cassette 11-fach
Shimano Dura Ace ST-R9170 STI 2x11 - Paar
Shimano XTR / Dura-Ace CN-HG901-11 Chain 11-speed
Shimano Dura Ace RD-R9150 Rear Derailleur 2x11
Shimano Dura Ace BR-R9170 Hydraulic Flat Mount Disc Brake Calipers
Shimano Di2 SM-BCR2 USB-Charger for BT-DN110
Shimano EW-JC130 Y-Split Rooting Electric Wire for Di2
Shimano SM-JC41 Junction Box for Di2 - internal
Shimano Di2 EW-RS910 Junction for Bar / Frame
Shimano EW-WU111 - Di2 D-Fly ANT+ Bluetooth Wireless Unit


The disc brake calipers are compatible with Ice Technologies pads and rotors beginning with a 140 mm diameter, mounting hardware for use with different sized rotors not included.

Be The First To Review This Product!

Help other Bikebug Pty Ltd users shop smarter by writing reviews for products you have purchased.

Write a product review