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Shimano Dura-Ace R9100 11 Speed Groupset

Code: R910011S
  • Now £1,199.00
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The HollowTech II 11-speed Dura-Ace chainset offers the optimum balance of light weight and rigidity, making it the global choice for road racing's elite riders

Hollow outer chainring, giving vast improvements in rigidity and increased weight savings

The hollow outer chainring has essentially removed outer chainring flex, hugely improving shift performance making it precise even under high load

These industry leading HollowTech II 4 arm cold forged hollow crank arms have been evolved to increase rigidity, reduce weight, and improve strength

The teeth have been developed to work only in conjunction with the 11-speed chains for improved contact providing more efficiency and improved power transfer

There is a wide range of chainring ratios and crank arm lengths available enabling customisation for all riders and racing disciplines

HollowTech II integrated bottom bracket design uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency

Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling and increased durability

Weight 609 grams (50-34T)



Super lightweight 11-speed HG-EV cassette with a rigid carbon and alloy carrier for excellent shifting even under the most demanding gear changes

Hyperglide EV sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load

Close ratio gearing allows a more efficient use of energy through finer cadence control

Largest sprockets are mounted on lightweight alloy and carbon carriers to reduce weight and increase rigidity

5 largest sprockets are made from titanium to reduce weight without sacrificing strength

Sprockets are extensively cut away and drilled to further reduce weight without reducing rigidity

Nickel-plated finish offers hard wearing resistance to corrosion

Alloy cassette lockring

For Super Narrow 11-speed HG-EV chains

Average weight 175 grams for 11-25 tooth



Super narrow lightweight 11-speed HG-EV symmetrical design chain for smooth shifts and maximum durability

Outer plate design has been developed to reduce the chance of chain suck

Sil-Tec surface treatment technology on inner and outer links and rollers that is smooth running and increases durability

Zinc-Alloy plated inner and outer links

Hollow pin for added weight saving

The inner plate has been developed for better contact with gears providing smoother shifting under high load, giving efficient pedalling, increased rigidity and near silent running

5.62 mm chain width, optimised for 11-speed Super Narrow HG-EV drivetrains

Average weight 243 grams


Rear Derailleur: 

Dura-Ace rear derailleur with lightweight carbon cage and wide link design gives quick accurate shifts, and unmatched drivetrain efficiency

Full carbon fibre inner and outer pulley plates enhance rigidity and significantly reduce weight

Low profile Shadow derailleur design

High tolerance cold forged aluminium link plates and body construction provide for extremely light weight, strength and durability

High rigidity wide outer link plates the pulley body to increase pivot joint rigidity

Sealed pulley bearings reduce friction and rotate silky smooth increasing efficiently

Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting

Pulleys are made of tough DuPont Zytel for longer life and less chain noise

With a total capacity of 33 tooth, it is able to operate with wide gear ratios up to a 30 tooth cassette sprocket

Hard wearing Dura-Ace finish and graphics for long lasting good looks

11-speed compatible

Weight: 166 grams


Front Derailleur:

Elite road racers demand reliable and precise shifting, 11-speed Dura-Ace R9100 delivers with its super-lightweight yet durable design

Lighter and intuitive shifting operation thanks to toggle link leverage construction

Thanks to improvements in the cage design outer trim is no longer required allowing the rider to focus on racing

Lightweight nickel-plated forged alloy chain cage reduces weight and increases rigidity whilst resisting abrasion from the chain

Extra wide pivot link and optimised spring tension gives a rigid, flex free shift while being smooth and light action

Forged aluminium construction reduces weight without sacrificing durability

Hard-wearing finish expected of Dura-Ace

Integrated cable tension adjustment

Maximum capacity of 16 teeth, for use with outer rings 50-55T

Weight: 67 g (braze-on)


STI Levers:

Precision-engineered Dura-Ace STI lever for the ultimate in powerful braking and effortless 11-speed shifting, making it the global choice for road racing's elite riders

Dura-Ace R9100 STI are lightweight thanks to carbon fibre lever blades, carbon composite bracket body, and a titanium clamp band / fixing bolt

Shift cables routed under the bar tape using Polymer coated inner wires make for a smooth shift action, providing faster, lighter shifting

Vivid Index shifting with short stroke to the release levers gives a quick and accurate shift

Gear shift cables can either be routed round the front or rear of the handlebar to suit all rider preferences

Ergonomic shift arc follows natural hand movement with inward shift stroke distance reduced for rapid and precise gear changes

Small volume ergonomically designed smooth lever hoods for added comfort

Brake lever pivots have been positioned to increase power and improve ergonomics when riding on the hoods

Finely tuneable reach adjusters for the levers enable custom fitment for all hands

Weight: 365 grams per set


Brake Callipers:

Top of the range SLR-EV dual symmetric pivot calliper brake with quick linear response, increased rigidity, and improved braking power

Enhanced brake arch proportions give a quicker linear response and increased power

Better clearance with wider tyres, compatible with 28C tyre size

Titanium centre pivot bolt for light weight

Thrust bearings and coated bushings between arms for smooth linear feel and increased durability

Brake pad compound offers excellent stopping power under wet and dry conditions, with improved durability

Spring tension adjuster for precision setup

Adjustable toe-in on the brake shoes for easy setting up


Please note: Due to the wide variety of bottom bracket types offered in frames this groupset does not include a bottom bracket


UK Deliveries
FREE when you spend over £50.00 in a single order
Otherwise it's typically £3.99 per order
Delivery should be expected between 2-3 working days unless stated on product page.

Worldwide Deliveries*
Approximately 4-10 working days depending on country
via Parcelforce Signed Delivery (fully traceable service). Please add items to the basket to calculate delivery for desired country.

If your country isn't listed for delivery at checkout please contact us.

Delivery of Bikes
We ship all our bikes free of charge within the United Kingdom (excl. Jersey and the Channel Islands at this time) and all our bikes come pre-assembled with just a few tweaks required (Please see our Bike Build Instruction page for details of assembly required).

All our bikes undergo a safety check before being re-boxed for shipping which can during busy periods take a little longer to complete so whilst we aim to ship all our bikes within two working days of the order please allow for additional time for this process.

Signature Required
All our consignments irrespective of the carrier require a signature upon delivery, deliveries are typically made between 08:00 and 18:00 so please bare this in mind when choosing a delivery address.

Package Recycling
We do try when possible to reuse packaging from our own suppliers in order to send purchased items to our customers, we ask if the packaging is still in good condition after you've received your goods then please try to use it again or recycle if not possible.