Since 1973 Shimano's Dura-Ace components have been at the forefront of pro racing & pro-level technology. Dura-Ace has continued its legacy of being proven in the peloton as well as serving as a launch pad for new technologies. Dura-Ace Di 2 (Dual Integrated Intelligence) moves to the next generation. Tested in competition & taken to victory by pro riders in all conditions including the 2012 Tour de France Team Sky. Whether you're building a new bike or looking to upgrade your trusty steed the groupset offers a hassle-free way to outfit your bike with the finest components available. Key

Features: Dual Control Levers: With Di 2 technology shifting is easy & precise
- just a light touch as soft as a mouse click is sufficient for the front or rear derailleur to instantaneously select the correct gear The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates corrosion & stretching & also provides effortless gear shifts Simply pressing tactile buttons allows effortless & comfortable shifting even when your hands are cold Shifters are lightweight thanks to carbon fibre lever blades carbon composite bracket body & a titanium clamp band / fixing bolt Drop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STI Brake lever pivot is positioned to be used with super SLR brake callipers increase power providing excellent ergonomics when riding on the hoods Finely tuneable reach adjusters for the levers enable custom fitment for all hands Levers are supplied without electrical cables as these need to be ordered separately to suit For use with E-tube electric cables Comes complete with SLR brake cable set Weight is 237 grams a pair Front Derailleur: The Di 2 front derailleur's operation is pioneering smooth shifting is guaranteed thanks to a microchip communication link with the gear levers. What's more shifting the rear derailleur automatically trims the front derailleur The biggest difference you will notice is just how much quicker & effortlessly smoother shifting on the front chainrings is even under load The difference in the effort & time to actuate the shift between mechanical & Di 2 is truly staggering The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates corrosion & stretching but provides effortless gear shifts The front derailleur also trims automatically; the cage moves in response to the position of the rear derailleur on the cassette to ensure no chain rub & a quiet unobtrusive ride enabling you to concentrate on the road ahead Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available 11-speed E-tube Di 2 compatible Compatible with 50-56 tooth chainrings Total capacity 16T Front derailleur weight is 114 grams Rear Derailleur: Digital Integrated Intelligence or Di 2: with programmed automatic motion at the touch of a switch the Dura-Ace Di 2 rear derailleur is quick smooth & effortless making for unmatched drivetrain efficiency Programmed automatic motion at the touch of a switch makes this derailleur quick smooth & effortless to shift The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates corrosion & stretching Derailleur contains a saver (fuse) function where the inner structure is protected from strong impacts 11-28T wide gear ratio capacity will cater for compact setups as well as the traditional road double Full carbon fibre inner & outer pulley plates enhance rigidity & reduce weight Titanium B axle bolt for further weight savings High tolerance cold forged aluminium link plates & body construction is extremely light & durable Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting Pulleys are made from tough Du Pont Zytel for longer life & less chain noise 11-speed E-tube Di 2 compatible Max front difference: 16T Total capacity: 33T Weight is 217 grams Chainset: Optimum power transfer & lighter weight maintains efficiency New chain guide design to reduce chain drop 4-arm construction crankset maintains high rigidity & reduces weight HOLLOWGLIDE chainrings maintain smooth shifting whilst reducing weight & increasing stiffness 110mm Pitch Circle Diameter for both compact & regular versions making gear ratio changes easy 50-34T/53-39T/54-42T/55-42T/52-36T/52-38T (New combination) Weight: 683g (53-39T with Bottom Bracket) Bottom bracket: The bottom bracket bearings for the Hollow Tech II FC9000 crankset which is the ultimate crankset for stiffness whilst keeping weight low for performance riding & racing Minimal bearing interface gives superbly smooth rotation Distinctive style that exudes quality & perfection Required for installation of FC9000 chainset with a choice of English or Italian thread BB cups Chain: Top of the range Dura-Ace Super narrow lightweight 11-speed HG-EV symmetrical design chain for smooth shifts & maximum durability Outer plate design has been developed to reduce the chance of chain suck Sil-Tec surface treatment technology (PTFE plating) that is smooth running & increases durability Hollow link pins offer great weight savings The inner plate has been developed for better contact with gears providing smoother shifting under high load giving efficient pedalling increased rigidity & near silent running 5.62 mm chain width optimised for 11-speed Super Narrow HG-EV drivetrains Average weight: 243g (114 Link) Cassette: Super lightweight 11-speed HG-EV cassette with a rigid carbon & 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 & carbon carriers to reduce weight & increase rigidity 5 largest sprockets are made from titanium to reduce weight without sacrificing strength Sprockets are extensively cut away & 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 166 grams for 11-23 tooth Brake calipers: SLR-EV (Brand new SLR with dual symmetric pivot brake caliper) Superior modulation & power for braking New brake cable system Weight: 297g (Pair) Internal Battery: Now mounted inside your frame & lighter than ever. Battery charger unit: The battery can also be charged in situ. Complete set of junction boxes & wiring (internal) for a tidy aesthetic.


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Bradley Wiggins rocketed to victory in the 2012 Tour de France powered by revolutionary 11-speed Dura-Ace. Now you too can own this cutting edge technology. Outside positioned bearings for better weight distribution & more stability. Bottom bracket has smaller bearings than current model for a reduced weight. Key

Features: New enhanced sealing ensures 50% less drag. Shell width: 68mm. Thread

Dimensions: 1.37 x 24 TPI. New look black finish.



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Bradley Wiggins rocketed to victory in the 2012 Tour de France powered by revolutionary 11-speed Dura-Ace. Now you too can own this cutting edge technology. Outside positioned bearings for better weight distribution & more stability. Bottom bracket has smaller bearings than current model for a reduced weight. Key

Features: New enhanced sealing ensures 50% less drag. Shell width: 68mm. Thread

Dimensions: 1.37 x 24 TPI. New look black finish.



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Bradley Wiggins rocketed to victory in the 2012 Tour de France powered by revolutionary 11-speed Dura-Ace. Now you too can own this cutting edge technology. Outside positioned bearings for better weight distribution & more stability. Bottom bracket has smaller bearings than current model for a reduced weight. Key

Features: New enhanced sealing ensures 50% less drag. Shell width: 68mm
- British, 70mm -Italian. Thread

Dimensions: 1.37 x 24 TPI. New look black finish.




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Bradley Wiggins rocketed to victory in the 2012 Tour de France powered by revolutionary 11-speed Dura-Ace. Now you too can own this cutting edge technology. Outside positioned bearings for better weight distribution & more stability. Bottom bracket has smaller bearings than current model for a reduced weight. Key

Features: New enhanced sealing ensures 50% less drag. Shell width: 68mm
- British, 70mm -Italian. Thread

Dimensions: 1.37 x 24 TPI. New look black finish.




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Top of the range SLR-EV dual symmetric pivot direct mount calliper brake with quick linear response, increased rigidity, & enhanced braking power. Key

Features: Direct calliper twin bolt mounting has 11 mm lower profile design improving aerodynamics Front fork mount Enhanced brake arch proportions give a quicker linear response & increased power Better clearance with wider tyres, compatible with 28C tyre size Titanium centre pivot bolt for light weight Thrust bearings & coated bushings between arms for smooth linear feel & increased durability Brake pad compound offers excellent stopping power under wet & dry conditions, with enhanced durability Spring tension adjuster for precision setup Adjustable toe-in on the brake shoes for easy setting up

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Top of the range SLR-EV dual symmetric pivot direct mount calliper brake with quick linear response, increased rigidity, & enhanced braking power. Key

Features: Direct calliper twin bolt mounting has 11 mm lower profile design improving aerodynamics Front fork mount Enhanced brake arch proportions give a quicker linear response & increased power Better clearance with wider tyres, compatible with 28C tyre size Titanium centre pivot bolt for light weight Thrust bearings & coated bushings between arms for smooth linear feel & increased durability Brake pad compound offers excellent stopping power under wet & dry conditions, with enhanced durability Spring tension adjuster for precision setup Adjustable toe-in on the brake shoes for easy setting up

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

Features:

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Elite road racers demand reliable & precise shifting, 11-speed Dura-Ace R9150 delivers with its super-lightweight yet durable design. Key

Features: Synchronized Shift designed, developed to choose the next biggest or lowest gear ratio irrespective of whether a gear change needs to be made by the front or rear derailleur The Di 2 front derailleur's operation is pioneering, smooth shifting is guaranteed thanks to a microchip communication link with the gear levers. What's more, shifting the rear derailleur automatically trims the front derailleur The biggest difference you will notice is just how much quicker & effortlessly smoother shifting on the front chainrings is, even under load The difference in the effort & time to actuate the shift between mechanical & Di 2 is truly staggering The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion & stretching, but provides effortless gear shifts The front derailleur also trims automatically; the cage moves in response to the position of the rear derailleur on the cassette to ensure no chain rub & a quiet unobtrusive ride, enabling you to concentrate on the road ahead Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available 11-speed E-tube Di 2 compatible Compatible with 50-55 tooth chainrings Total capacity 16T Front derailleur weight is 104 grams

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Digital Integrated Intelligence or Di 2: with programmed automatic motion at the touch of a switch the Dura-Ace Di 2 rear derailleur is quick, smooth & effortless, making for unmatched drivetrain efficiency. Key

Features: Programmed automatic motion at the touch of a switch makes this derailleur quick, smooth & effortless to shift Synchronized Shift designed, developed to choose the next biggest or lowest gear ratio irrespective of whether a gear change needs to be made by the front or rear derailleur Wireless data network system unit is integrated into mech The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion & stretching Low profile Shadow derailleur design Derailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts 11-30T wide gear ratio capacity will cater for compact setups as well as the traditional road double Full carbon fibre inner & outer pulley plates enhance rigidity & reduce weight Titanium B axle bolt for further weight savings High tolerance cold forged aluminium link plates & body construction is extremely light & durable Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting Pulleys are made from tough Du Pont Zytel for longer life & less chain noise Direct mount compatible 11-speed E-tube Di 2 compatible Max front difference: 16T Total capacity: 35T Weight is 204 grams

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