The Hollow Tech II 11-speed Ultegra chainset offers an ideal balance of light weight & stiffness, making it the perfect choice for both enthusiast & competitive riders. Hollow Glide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex & hugely improves shift performance, even under high load. The chainring teeth have been developed to work in conjunction with 11-speed HG-EV chains for increased contact to provide greater efficiency & enhanced power transfer. Industry leading Hollow Tech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight. Wide gear pitch spacing increases clearance between chain & leading teeth to provide compatibility to frames with OLD 135 / 142 mm & 410mm chain stay length. A wide range of chainring options & crank arm lengths are available to meet the needs of all riders & racing disciplines. Hollow Tech II integrated bottom bracket uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency. Hollow Tech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling & increased durability (sold separately). ...

The Hollow Tech II 11-speed Ultegra chainset offers an ideal balance of light weight & stiffness, making it the perfect choice for both enthusiast & competitive riders. Hollow Glide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex & hugely improves shift performance, even under high load. The chainring teeth have been developed to work in conjunction with 11-speed HG-EV chains for increased contact to provide greater efficiency & enhanced power transfer. Industry leading Hollow Tech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight. Wide gear pitch spacing increases clearance between chain & leading teeth to provide compatibility to frames with OLD 135 / 142 mm & 410mm chain stay length. A wide range of chainring options & crank arm lengths are available to meet the needs of all riders & racing disciplines. Hollow Tech II integrated bottom bracket uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency. Hollow Tech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling & increased durability (sold separately). ...

The Hollow Tech II 11-speed Ultegra chainset offers an ideal balance of light weight & stiffness, making it the perfect choice for both enthusiast & competitive riders. Hollow Glide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex & hugely improves shift performance, even under high load. The chainring teeth have been developed to work in conjunction with 11-speed HG-EV chains for increased contact to provide greater efficiency & enhanced power transfer. Industry leading Hollow Tech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight. Wide gear pitch spacing increases clearance between chain & leading teeth to provide compatibility to frames with OLD 135 / 142 mm & 410mm chain stay length. A wide range of chainring options & crank arm lengths are available to meet the needs of all riders & racing disciplines. Hollow Tech II integrated bottom bracket uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency. Hollow Tech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling & increased durability (sold separately). ...

A smooth shifting swing. Key

Features: Completely redesigned for use with the new 6700 shifters for superb

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A smooth shifting swing. Key

Features: Completely redesigned for use with the new 6700 shifters for superb

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The Shimano Ultegra FD-6800 Front Derailleur has been redesigned for smoother, faster & easier shifting. Front shifting effort has been decreased, while new polymer coated cables add to the slick feel. Key

Features: Compatible with Ultegra 6800 STI levers & Dura Ace 9000 STI For use with 2 x 11 speed systems Shimano Ultegra 6800 from the new 11 speed groupset Developed with compact (34/50) & 39/53 chainsets Newly developed tension arm for simple & direct shifting Smoother operation over the range of gear ratios

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Ultegra front derailleur with toggle link construction matches the force curve of the hand more naturally. Toggle link design is light action with short lever movement & less effort at the end of shifting stroke. Wide inner link increased rigidity & takes front shifting performance to a new level, especially under heavy load. The forged wide link cradles the axle pivot at both ends providing a smooth shifting swing. Designed to work with the wider gear pitch spacing Shimano chainsets without sacrificing shifting performance on bikes with 135 / 142 mm OLD. Cable tension is adjustable on the front derailleur. Added frame support bolt for more stability under load. ...

Ultegra front derailleur with toggle link construction matches the force curve of the hand more naturally. Toggle link design is light action with short lever movement & less effort at the end of shifting stroke. Wide inner link increased rigidity & takes front shifting performance to a new level, especially under heavy load. The forged wide link cradles the axle pivot at both ends providing a smooth shifting swing. Designed to work with the wider gear pitch spacing Shimano chainsets without sacrificing shifting performance on bikes with 135 / 142 mm OLD. Cable tension is adjustable on the front derailleur. Added frame support bolt for more stability under load. ...

Ultegra front derailleur with toggle link construction matches the force curve of the hand more naturally. Toggle link design is light action with short lever movement & less effort at the end of shifting stroke. Wide inner link increased rigidity & takes front shifting performance to a new level, especially under heavy load. The forged wide link cradles the axle pivot at both ends providing a smooth shifting swing. Designed to work with the wider gear pitch spacing Shimano chainsets without sacrificing shifting performance on bikes with 135 / 142 mm OLD. Cable tension is adjustable on the front derailleur. Added frame support bolt for more stability under load. ...

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. Full & semi synchronized shifting programable, Synchro shift compatible meaning a single shifter can control both front & rear shifting which can be fully custom tuned to your riding preferences Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratio. 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. Designed to work with the wider gear pitch spacing Shimano chainsets without sacrificing shifting performance on bikes with 135 / 142 mm OLD. Cable tension is adjustable on the front derailleur. 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. ...