The Hollow Tech II 11-speed Dura-Ace chainset offers the optimum balance of light weight & rigidity, making it the global choice for road racing's elite riders. Key

Features: Hollow outer chainring, giving vast improvements in rigidity & 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 Hollow Tech II 4 arm cold forged hollow crank arms have been evolved to increase rigidity, reduce weight, & improve strength The teeth have been developed to work only in conjunction with the 11-speed chains for enhanced contact providing more efficiency & enhanced power transfer There is a wide range of chainring ratios & crank arm lengths available enabling customisation for all riders & racing disciplines Hollow Tech II integrated bottom bracket design uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling & increased durability Weight: 609 grams (50-34T)

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The Hollow Tech II 11-speed Dura-Ace chainset offers the optimum balance of light weight & rigidity, making it the global choice for road racing's elite riders. Key

Features: Hollow outer chainring, giving vast improvements in rigidity & 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 Hollow Tech II 4 arm cold forged hollow crank arms have been evolved to increase rigidity, reduce weight, & improve strength The teeth have been developed to work only in conjunction with the 11-speed chains for enhanced contact providing more efficiency & enhanced power transfer There is a wide range of chainring ratios & crank arm lengths available enabling customisation for all riders & racing disciplines Hollow Tech II integrated bottom bracket design uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling & increased durability Weight: 609 grams (50-34T)

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The Hollow Tech II 11-speed Dura-Ace chainset offers the optimum balance of light weight & rigidity, making it the global choice for road racing's elite riders. Key

Features: Hollow outer chainring, giving vast improvements in rigidity & 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 Hollow Tech II 4 arm cold forged hollow crank arms have been evolved to increase rigidity, reduce weight, & improve strength The teeth have been developed to work only in conjunction with the 11-speed chains for enhanced contact providing more efficiency & enhanced power transfer There is a wide range of chainring ratios & crank arm lengths available enabling customisation for all riders & racing disciplines Hollow Tech II integrated bottom bracket design uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling & increased durability Weight: 609 grams (50-34T)

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The Hollow Tech II 11-speed Dura-Ace chainset offers the optimum balance of light weight & rigidity, making it the global choice for road racing's elite riders. Key

Features: Hollow outer chainring, giving vast improvements in rigidity & 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 Hollow Tech II 4 arm cold forged hollow crank arms have been evolved to increase rigidity, reduce weight, & improve strength The teeth have been developed to work only in conjunction with the 11-speed chains for enhanced contact providing more efficiency & enhanced power transfer There is a wide range of chainring ratios & crank arm lengths available enabling customisation for all riders & racing disciplines Hollow Tech II integrated bottom bracket design uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling & increased durability Weight: 609 grams (50-34T)

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

Features: Lighter & 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 & increases rigidity whilst resisting abrasion from the chain Extra wide pivot link & optimised spring tension gives a rigid, flex free shift while being smooth & 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: 69 g (braze-on)

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

Features: Lighter & 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 & increases rigidity whilst resisting abrasion from the chain Extra wide pivot link & optimised spring tension gives a rigid, flex free shift while being smooth & 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: 69 g (braze-on)

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Band on adapter to fit FD9150 braze on derailleur to a band on frame design. ...

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

Features: Full carbon fibre inner & outer pulley plates enhance rigidity & significantly reduce weight Low profile Shadow derailleur design High tolerance cold forged aluminium link plates & body construction provide for extremely light weight, strength & durability High rigidity wide outer link plates the pulley body to increase pivot joint rigidity Sealed pulley bearings reduce friction & rotate silky smooth increasing efficiently 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 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 & graphics for long lasting good looks 11-speed compatible Weight: 166 grams

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

Features: Dura-Ace R9100 STI are lightweight thanks to carbon fibre lever blades, carbon composite bracket body, & 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 & 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 & precise gear changes Small volume ergonomically designed smooth lever hoods for added comfort Brake lever pivots have been positioned to increase power & 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

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The Shimano Dura Ace R9120 11 Speed Groupset
Includes:: Shimano Dura Ace FC-9100 Chainset The Hollow Tech II 11-speed
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