Dura-Ace now available in a disc brake version.

Dura-Ace now available in a disc brake version.​

With the start of the Tour de France just around the corner, the cycling industry is in its usual product launch frenzy, looking to capitalize on the renewed attention that comes with the world's most important bike race. But even if it were the dead of winter, the release of a new Dura-Ace level groupset from Shimano would turn heads.

Available with either Di2 electronic or mechanical shifting, for the first time, riders now have the option of Dura-Ace level hydraulic disc braking. Other new technologies further integrate into the Dura-Ace system, including a power meter and wider range drivetrain that includes intuitive Shimano Synchro Shift control. The Japanese giant is also rolling out new wheels and pedals. Here's a part-by-part breakdown of what's new and cool from the world's leading cycling component maker, starting with this video that breaks it all down. (For a full breakdown of weights and pricing, plus a video from the product launch, skip ahead to page 4.)

httpv://www.youtube.com/watch?v=prvNjrLZpx0

Improved Drivetrain

Starting with the new Dura-Ace crankset, Shimano says efficiency and versatility are increased. The FC-R9100 HOLLOWTECH II crankset's shaping improves on Dura-Ace's 4-arm design, adding strength and rigidity while lowering weight. Shimano's gearing offers a number of chainring configurations with a singular BCD for ease of use. 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.

The new design also saves 7 grams and the new chainring tooth profile is adapted for race bike specific disc brake systems. It can also accommodate shorter chainstays down to 410mm.

Crank arm lengths are 165, 167.5, 170, 172.5, 175, 177.5, and 180mm. Gear combinations for 2x11 are 50-34T, 52-36T, 53-39T, 54-42T, 55-42T. Claimed weight is 609g (50-34T), 621g (53-39T).

Shimano Dura-Ace

Also noteworthy is the inclusion of the new 11-30T R9100 cassette, which expands gearing options further. The cassette features CFRP and alloy spider arm, plus five titanium sprockets for lightweight performance. The full range of gear combinations are now 11-25T, 11-28T, 11-30T, 12-25T, 12-28T. Claimed weights are175g (11-25T), 193g (11-28T), 211g (11-30T), 189g (12-25T), 205g (12-28T).

Meanwhile, the new HG901-11 chain features an asymmetric plate design that improves shift quality, increases chain retention and reduces drivetrain noise, says Shimano. It also bolsters chain retention across the range of chain line angles, helps improve front and rear shift performance, and has a hollow pin design for low weight, which is claimed to be 247g for 114 links. The new chain comes with a SM-CN900-11 QUICK-LINK for tool-free connection for quick and easy assembly. It's compatible with current 11-speed chains.

Shimano Dura-Ace

New Power Meter

The FC-R9100-P, says Shimano, delivers top-shelf power measurement seamlessly designed into the new DURA-ACE HOLLOWTECH II crankset. The dual-sided strain gauges are internally hard wired together for reliable performance in all weather conditions and accurate measurement regardless of pedaling position. Shimano's integrated approach also ensures simplified maintenance with a single rechargeable battery powering the entire unit and the ability to wirelessly update firmware.

Shimano claims ±2% strain gauge power measurement accuracy, and points out that you can easily swap chainrings without affecting power measurement. Communication is via Bluetooth and ANT+ wireless. Crank arm lengths are 170, 172.5, 175mm (w/chainrings), or 165, 167.5, 170, 172.5, 175, 177.5, 180mm (w/o chainrings). Gear combinations for 2x11 are 50-34T, 52-36T, 53-39T.

Continue to page 2 for more on Shimano's new Dura-Ace offerings


Shimano Dura-Ace

Lighter Mechanical Shifting

Improving further upon DURA-ACE's, the R9100 Dual Control Levers deliver further refined shift performance with improved ergonomics, available in mechanical rim brake or hydraulic disc brake configurations.

The ST-R9100, Dual Control Lever (2x11-speed) and ST-R9120, Hydraulic Disc Brake Dual Control Lever (2x11-speed) have shorter lever stroke to deliver quick and intuitive rear shifting. The redesigned internal shifting unit provides lighter front shifting operation, and the refined hood cover material has a more ergonomic shape. There is also expanded reach adjustment range (14mm) and more customizable and precise lever position. Claimed weights are365g (ST-R9100, Pair), 505g (ST-R9120, Pair).

Shimano's new DURA-ACE R9100 mechanical derailleurs provide improved performance and easier set up. The front derailleur offers more cable routing options and features an integrated cable tension adjustment eliminating the need for a barrel adjuster. The new DURA-ACE rear derailleur features Shimano's Shadow RD design, which gives the derailleur a lower profile and more stable operation.

R9100 Front Derailleur (2x11-speed)
  • Lighter and intuitive shifting operation
  • Natural front shift lever stroke
  • More ergonomic power curve
  • Precise & easy front derailleur set up
  • More cable routing options
  • Integrated cable tension adjustment
  • New link (Toggle) construction does not require special tools
  • Adjustable cable tension on the front derailleur
  • Adapted for race specific disc brake frame design
  • Available wider front gear pitch
  • Allows for shorter chainstays with 135mm OLD
  • Total capacity: 16T
  • Weight: 69g (FD-RR9100-F)

R9100 SHIMANO SHADOW RD (11-speed)
  • Shimano Shadow RD low-profile design
  • Pulley maintains consistent distance to cassette for increased shift stability
  • Less damage in a crash
  • Maintains compact and smooth appearance
  • Total capacity: 35T
  • Weight: 158g

Shimano Dura-Ace

Di2 Shifting Systems

Another major highlight is expanded Shimano Synchronized Shift capabilities for road. First introduced in XTR Di2 M9050, Shimano's innovative Synchro Shift is now available with DURA-ACE R9150/R9170. Available as a programmable Di2 option, Synchro Shift creates an intuitive experience on the bike through synchronized front and rear shifting that can be custom programmed by riders.

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 minimize the gear step, thus preserving the rider's rhythm. Shimano Synchronized Shift will be available for all previous 11-speed Di2 road component groups with the use of new Di2 firmware and accessories in November 2016.

DURA-ACE Di2 performance is also now available for both mechanical rim brake and hydraulic disc brake configurations. Both Di2 Dual Control Lever options feature a refined hood shape with svelte shared ergonomics for more rider control regardless of braking choice. The ergonomically-enhanced Di2 shift levers are said to now produce a more defined shift click for a more intuitive feel and quicker shifting operation and expanded E-Tube customization allows every switch the option to independently turn on or off multi-shift. The versatile SW-R9150 Remote Satellite Shifter expands customization possibilities further. The new low-profile Shadow derailleur designs also boosts shifting performance thanks to a ground-up re-design which takes advantage of Shimano's Shadow RD architecture first introduced for mountain bikes. This low profile design delivers a sleek appearance while improving its ability to withstand crash damage. The new front derailleur delivers better shift quality, for quick and smooth performance even under high pedaling torque.

Shimano Dura-Ace

R9150 and R9170 Di2 Dual Control Levers (2x11-speed)
  • Ideal ergonomic cover shape with better contact feel
  • More control and confidence in race conditions
  • Optimally balanced hydraulic brake system for racing
  • Dedicated brake lever shape, stroke, contact point, stiffness and dedicated shift paddles
  • Carbon composite plastic hood material for lightweight construction
  • More defined click feeling and ergonomic shift lever position
  • More intuitive, quicker shifting operation
  • Increased E-TUBE project customization
  • Each switch has the option for multi-shift
  • Customizable function to fit any riding style
  • Weight: 230g (ST9150) Pair, 360g (ST9170) Pair

R9150 Remote Satellite Shifter (climbing shifter)

  • Customizable function via E-Tube Project to fit in rider's riding style
  • Versatile mounting placement for customized rider configuration and quick shifting operation

R9150 Di2 Front Derailleur (2x11-speed)
  • Shimano synchronized shift
  • Simplified shifting option
  • Quick and smooth front shifting "under" high pedaling torque
  • Maintains compact and smooth appearance
  • Total capacity: 16T
  • Weight: 104g

R9150 Di2 SHIMANO SHADOW RD (11-speed)
  • Shimano synchronized shift
  • Simplified shifting option
  • Shimano Shadow RD low-profile design
  • Pulley maintains consistent distance to cassette for increased shift stability
  • Less damage in a crash
  • Maintains compact and smooth appearance
  • Total capacity: 35T
  • Weight: 204g

Continue to page 3 for more on Shimano's new Dura-Ace offerings


Shimano Dura-Ace

New E-Tube technology

Di2's E-Tube system provides top-shelf shift performance, reliability and rider customization. Along with enhanced Di2 functionality, expanded E-Tube wire options and junction boxes as well as the new EW-WU111 Wireless Unit, deliver improved wiring configurations and wireless connectivity.

Shimano Dura-Ace

DURA-ACE Disc Brakes

The new DURA-ACE hydraulic disc brake caliper utilizes a lightweight and minimalistic Flat Mount design. The new RT900 rotor offers even greater heat management capability than Shimano's SM-RT99 ICE TECHNOLOGIES FREEZA rotors.

R9170 Hydraulic Disc Brake Caliper
  • Integrated low-profile caliper design utilizes Flat Mount system
  • Powerfully integrated brake performance
  • Better control and confidence in race conditions
  • Optimally balanced hydraulic brake system for racing
  • Lightweight design
  • Improved heat dissipation
  • Simple set up and maintenance
  • Easy tool access, wheel replacement and bleeding process
  • Wide pad clearance
  • One way bleeding
  • Weight: 256g (BR-R9170, Pair)

RT900 CENTER LOCK Disc Rotor
  • ICE TECHNOLOGIES FREEZA
  • Size: 140,160mm (SM-RT900)
  • Weight: 119g (SM-RT900,160mm), 96g (SM-RT900,140mm)

Shimano Dura-Ace

Improved Rim Braking

Shimano improves upon its rim brake performance with DURA-ACE R9100. Redesigned Dual-Pivot and Direct Mount models feature a sleek new design with improved stopping power and increased clearance for 28C tires.

R9100 Dual-Pivot Brake Caliper
  • The best balance between rigidity, weight and stopping power
  • More predictable, linear braking curve
  • Clear contact feeling with better linearity
  • Stabilizer added between axles reduces deformation
  • Less gap between each arms for a sleek appearance
  • Compatible with 28C tire size
  • Weight: 326g (Pair)

R9110 Direct Mount Type Brake Caliper
  • Increased overall braking performance
  • Integrated sleek low-profile caliper design
  • Compatible with 28C tire size
  • Intuitive braking control
  • Smooth and light operation
  • Weight: 155g (BR-R9110-F, pc), 133g (BR-R9110-R, pc), 152g (BR-R9110-RS, pc)

Shimano Dura-Ace

New DURA-ACE R9100 Wheels

Featuring wider rim shapes and new rim depth options, OPTBAL spoke system and Shimano's hub technology, DURA-ACE offers expanded wheelsets for both rim and disc brakes. All-new C60 and C40 rim profiles offer a balance of aerodynamics and rim rigidity, available in tubular, clincher and tubeless applications.

Shimano Dura-Ace

Refined SPD-SL Pedals

By reexamining every aspect of Dura-Ace SPD-SL pedals, Shimano was able to save 24.5g while still providing SPD efficiency, stability and durability.

R9100 SPD-SL Pedal

  • Excellent pedaling efficiency
  • Optimized balance of weight and rigidity
  • Injection molded carbon composite body
  • Hollow cleat bolt
  • Extra-wide platform provides efficient power transfer and excellent stability
  • Stainless steel body plate
  • Wide bearing placement design ensures smooth rotation, uniformed load distribution and durability
  • Adjustable entry and release tension settings
  • Shimano 3-year limited warranty

Continue to page 4 to watch a video from the launch and see a full breakdown of weights and pricing for all the new components


httpv://www.youtube.com/watch?v=-ynvOMnyw8g

Shimano Dura-Ace

Shimano Dura-Ace

Shimano Dura-Ace

Shimano Dura-Ace

Shimano Dura-Ace

For more information please visit bike.shimano.com.