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Shimano Ultegra R8000 11 Speed Chainring - Grey - 53t}, Grey
  • £134.99

Shimano Ultegra R8000 11 Speed ChainringAdopting many of the same features and technologies that are seen on Shimano’s top-end Dura-Ace range, the Ultegra R8000 11 Speed Chainring delivers optimised power transfer and ultra-precise shifting.Lightweight Road ChainringThis superb model is specifically designed for use with your Shimano Ultegra FC-R8000 crankset for efficient, smooth shifting. Additionally, it features Hollowglide technology which offers reduced weight and drastically improved stiffness and aerodynamics.Features: Material: Aluminium Bolt Circle Diameter (BCD): 4x110mm asymmetric (Shimano specific) Speed: 11-Speed Chainset Compatibility: Shimano 105 FC-5800, Ultegra FC-R8000, Dura-Ace 9100 Sold IndividuallyTechnologies: Hollowglide: High rigidity hollow structure cuts down on weight yet maintains strength. Better power transfer and quicker and more precise front shiftingA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components & Wheels from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Ultegra R8000 11 Speed Chainring Chain Rings
  • £24.99

This stunning model delivers the perfect strength to weight ratio for drastically improving stiffness and aerodynamics, while also not having to worry about adding any excess weight to your drivetrain. It ensures optimum power transfer and top-quality shifting performance, so you can enjoy fast and flawless shifting. This is a perfect choice of a replacement for your old or worn-out existing model for staying at the top of your game while out on the road.

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Shimano Ultegra R8000 11 Speed Chainset Chainsets
  • £199.00
  • RRP £269.99
  • Saving you £26

Eagerly anticipated, the updated Shimano R8000 crankset has arrived. Featuring clear improvements in aesthetics and performance from the 6800 series, the Ultegra R8000 series has hugely benefited from the trickle-down technology of its big brother, the Dura-Ace R9000 model. This completely updated road bike chainset features lightweight crankarms, a hollow outer chainring, and a wider gear pitch for increased clearance on modern road frames that have wider rear dropouts and longer chainstays. Offering weight reduction without sacrificing stiffness, the Shimano Ultegra R8000 chainset enables a wide range of gear combinations to suit your every need. Paired with the updated front and rear derailleurs, your shifts will be so fast and reliable that you’ll almost question whether they happened at all. The beautifully shaped crankarms borrow their styling from Dura-Ace and will complement and enhance the aesthetics of your bike.

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Shimano Ultegra R8000 11 Speed Chainset w-o BB - Black - 46.36t}, Black
  • £215.99
  • RRP £269.99
  • Saving you £20

Shimano Ultegra R8000 11 Speed Chainset w/o BBEagerly anticipated, the updated Shimano R8000 crankset has arrived. Featuring clear improvements in aesthetics and performance from the 6800 series, the Ultegra R8000 series has hugely benefited from the trickle-down technology of its big brother, the Dura-Ace R9000 model. This completely updated road bike chainset features lightweight crankarms, a hollow outer chainring, and a wider gear pitch for increased clearance on modern road frames that have wider rear dropouts and longer chainstays.Offering weight reduction without sacrificing stiffness, the Shimano Ultegra R8000 chainset enables a wide range of gear combinations to suit your every need. Paired with the updated front and rear derailleurs, your shifts will be so fast and reliable that you'll almost question whether they happened at all. The beautifully shaped crankarms borrow their styling from Dura-Ace and will complement and enhance the aesthetics of your bike.Hollowtech II TechnologyProviding the best balance of stiffness, strength, weight and rotating performance. The concept of Hollowtech II technology is focused on producing a superior crankset that will maximise a rider's power transfer. The rigidity of the crankset ensures pedalling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. Hollowtech II technology is an ultra-lightweight hollow crankarm created by Shimano with the company's own proprietary forging technology that also maintains rigidity. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedalling stability, allowing for more efficient power transfer.Features: Speed: 11 Speed Number of Chainrings: 2 Crank Construction: Hollowtech II (24mm spindle) Chainline: 43.5mm Q-Factor: 146mm Bolt Circle Diameter (BCD): 4x110mm asymmetric Bottom Bracket Included: No Redesigned crank arms for greater frame compatibility Lightweight crankarm design optimised for power-transfer efficiency Weight: 53/39T Option: 690g; 46/36T Option: 668gTechnologies: Lightweight crankarm design optimised for power-transfer efficiency. Minimal weight without sacrificing stiffness. Hollowtech II. Rider-tuned gear performance through various gear combinations. Redesigned FC for greater frame compatibility. Wider gear pitch increases clearance between chain and leading teeth, providing compatibility with frames of O.L.D. 135mm and 410mm chainstay length.Manufacturer's Part Numbers: 89222995 Black 46/36T 170mm 89222994 Black 53/39T 165mmBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Ultegra R8000 11 Speed Chainset w-o BB - Black - 53.39t}, Black
  • £215.99
  • RRP £269.99
  • Saving you £20

Shimano Ultegra R8000 11 Speed Chainset w/o BBEagerly anticipated, the updated Shimano R8000 crankset has arrived. Featuring clear improvements in aesthetics and performance from the 6800 series, the Ultegra R8000 series has hugely benefited from the trickle-down technology of its big brother, the Dura-Ace R9000 model. This completely updated road bike chainset features lightweight crankarms, a hollow outer chainring, and a wider gear pitch for increased clearance on modern road frames that have wider rear dropouts and longer chainstays.Offering weight reduction without sacrificing stiffness, the Shimano Ultegra R8000 chainset enables a wide range of gear combinations to suit your every need. Paired with the updated front and rear derailleurs, your shifts will be so fast and reliable that you'll almost question whether they happened at all. The beautifully shaped crankarms borrow their styling from Dura-Ace and will complement and enhance the aesthetics of your bike.Hollowtech II TechnologyProviding the best balance of stiffness, strength, weight and rotating performance. The concept of Hollowtech II technology is focused on producing a superior crankset that will maximise a rider's power transfer. The rigidity of the crankset ensures pedalling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. Hollowtech II technology is an ultra-lightweight hollow crankarm created by Shimano with the company's own proprietary forging technology that also maintains rigidity. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedalling stability, allowing for more efficient power transfer.Features: Speed: 11 Speed Number of Chainrings: 2 Crank Construction: Hollowtech II (24mm spindle) Chainline: 43.5mm Q-Factor: 146mm Bolt Circle Diameter (BCD): 4x110mm asymmetric Bottom Bracket Included: No Redesigned crank arms for greater frame compatibility Lightweight crankarm design optimised for power-transfer efficiency Weight: 53/39T Option: 690g; 46/36T Option: 668gTechnologies: Lightweight crankarm design optimised for power-transfer efficiency. Minimal weight without sacrificing stiffness. Hollowtech II. Rider-tuned gear performance through various gear combinations. Redesigned FC for greater frame compatibility. Wider gear pitch increases clearance between chain and leading teeth, providing compatibility with frames of O.L.D. 135mm and 410mm chainstay length.Manufacturer's Part Numbers: 89222995 Black 46/36T 170mm 89222994 Black 53/39T 165mmBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Ultegra R8000 11 Speed Groupset Groupsets
  • £959.99
  • RRP £1099.99
  • Saving you £13

It was never going to be easy to improve on the Ultegra 6800 but there are clear improvements with its aesthetics and performance. Shimano has evolved the Ultegra series, which hugely benefits from the joys of its bigger brother's technology, Dura-Ace R9000. Infused with state-of-the-art technology, the Shimano Ultegra R8000 groupset is superbly stiff, light, and responsive. This Ultegra groupset is a major upgrade on any racing or training road bike. Shimano Ultegra R8000 Hollowtech II Crankset This FC-R8000 Hollowtech II Crankset will make sure you transfer power into speed. With the added bonus of offering weight reduction without sacrificing stiffness, this crankset supports a wide range of gear combinations to suit the fastest downhill section and the steepest mountain pass. The crankarm is redesigned to provide your bike with a fine aesthetic upgrade. Features: Bolt Circle Diameter: 4x110mm asymmetric Chainline: 43.5mm New 4-arm design for a stiff, lightweight performance Hollowtech II construction Hollowglide chainrings 11-Speed Compatible Same bolt circle diameter for compact and traditional double chainsets means that one crankarm fits all chainring sizes Weight: 681g (52-36T), 674g (50-34T) Dual Control Shifters Set STI Ultegra R8000 Offering an increase in accuracy and shifting precision, these Dual Control Levers have a greater reach for adjusting your break and gear levers. The internal shifting unit is updated to offer quick and intuitive shifting. *Please Note: Supplied with inner Gear cables only and does not include brake cables. Features: Material: Carbon Fibre (brake lever) Shift Cable: Polymer coated Ergonomic design with greater reach Light action, define click engagement, vivid index shifting Updated internal shifting unit Powerful and controllable braking system Weight: 438g (Set) Ultegra Rear Derailleur R8000 The RD-R8000 reduces shifting effort at the lever whilst retaining a quick and precise response. Featuring integrated Shadow RD Technology with its race-proven, low-profile design, the rear derailleur is more compact and fits closer to the frame, ensuring less damage in a crash. Features: Shadow RD Technology Precise and accurate shifting Weight: 200g (Short Cage) Ultegra Front Derailleur R8000 The FD-R8000 evolves to provide an ultra-smooth shifting action that flawlessly moves your chain up and down whenever required. with zero delays, you can enjoy a shift that is crisp and concise. Features: Mounting Type: Braze-on Newly designed pull arm for more direct and easy shifting Weight: 92g Ultegra Brake Set R8000 Enhanced with a new, sleek design, the Ultegra caliper brake has narrower gaps between the arms for a reduced profile and compatibility with 28c tyres. The stabiliser between the axles improves braking performance by delivering clear contact to bring you to a balanced stop. Features: Balanced stopping action Smooth and light operation with increased modulation Compatible with up to 28c tyres Weight: 360g (Set) 11-Speed R8000 Ultegra Cassette At the heart of Shimano's 'rider-tuned philosophy' lies their belief in offering superior choice. With a huge range of cassette options, you'll conquer any terrain. Features: Speed: 11-Speed Tooth Count: Separate 11-28T, 11-25T and 11-32T options Weight: 232g Shimano HG701 Ultegra and XT 11 Speed Chain   Featuring a durable stainless steel build with a range of performance-enhancing technologies, the Shimano HG701 Ultegra and XT 11 Speed Chain offers smooth, crisp shifting for both road cycling and mountain bike (MTB) riding. Speed: 11-Speed Links: 114 Weight: 257g Technologies: Shadow RD: Traditional derailleurs extend wider than the profile of your bike. With its low-profile design, Shadow RD is a more compact derailleur that fits closer to the frame, with more direct cable routing. Shadow RD maintains a consistent distance to the cassette for increased shift stability. The reduced body width creates a sleek and smooth appearance, ensuring less damage in a crash. Please note that this groupset does not come supplied with outer cables. Front mech support plates not included. A 2-year warranty is offered with all Shimano products.  

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Shimano Ultegra R8000 11 Speed Jockey Wheels Jockey Wheels
  • £20.99

Ready for an unrivalled level of performance, this stunning set of Shimano Ultegra jockey wheels offers low friction and smooth movement. This makes it an ideal pair for riders who want to breathe new life back into your rear derailleur as you soar from the city streets to the countryside. Rear Derailleur Compatibility: RD-R8000-GS, RD-R8000-SS, RD-R8050-GS, RD-R8050-SS, RD-RX800-GS, RD-RX805-GS, RD-RX812, RD-M8000-GS, RD-M8000-SGS, RD-M8050-GS, RD-RX817  

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Shimano Ultegra R8000 11 Speed Rear Derailleur (SS) Rear Derailleurs
  • £82.99
  • RRP £89.99
  • Saving you £8

Compatible with a cassette tooth count range of 11-25T to 11-30T and adopting Shadow technology from Shimano's mountain bike (MTB) range, the Shimano Ultegra R8000 rear derailleur ensures a smooth ride in even the highest and steepest mountain areas. The integrated Shadow technology is race-proven and with its low profile design, this slick operating road rear derailleur is aerodynamic, more compact and fits closer to the frame, ensuring less damage in a crash. Technologies: Shadow: Shadow design features a super low profile design and optimised slant angle for super light shifting action. HG-EV: HG-EV cassette sprocket is for rider-tuned gear combination and cadence management. Shimano provides the optimal 11-speed drivetrain gear ratio; you can choose from the wider and closer gear combinations available to match various riding disciplines. HG-EV cassette sprocket is obtained 11-speed gear without compromising the 10-speed durability and improved HYPERGLIDE shifting HG-X11 Chain Compatible: Silky driving, accurate shifting. HG-X11 directional chain ensures smoother shifts and greater overall performance. The right and left sides are optimised for front and rear shifting respectively

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Shimano Ultegra R8000 11 Speed Rear Derailleur - Grey - Medium Cage}, Grey
  • £94.99

Shimano Ultegra R8000 11 Speed Rear DerailleurNow compatible with a wider range of cassette tooth count options, the Ultegra R8000 11 Speed Rear Derailleur delivers has been optimised by Shimano to offer fast and accurate gear shifts with minimal rider effort. In addition to the slick shifting, it also adopts the “Shadow” cage design to sit closer to your bike's frame. This improving its aerodynamics and protects it should you be unlucky enough to have a crash. Race-ready, it’s made in two different cage sizes to suit your cassette size preference.Key Features: Material: Alloy Colour: Grey Speed: 11-Speed Compatibility: All Shimano 2x11-Speed road drivetrainsCage Size: Separate short and medium cage size options Cassette Size Capacity: Short Cage: 11-25T to 11-30T; Medium Cage: 11-28T to 11-34T Total Capacity: Short Cage: 35T; Medium Cage: 39T Mounting: Standard hanger mount or direct mount Clutch Type: No Shadow Technology Low-profile design Precise and accurate shifting Manufacturer's Part Number: Short Cage: RD-R8000-SS; Medium Cage: RD-R8000-GS Weight: Short Cage: 200g; Medium Cage: 210gTechnologies: Shadow RD: Traditional derailleurs extend wider than the profile of your bike. With its low-profile design, Shadow RD (Reduced main derailleur body) is a more compact derailleur that fits closer to the frame, with more direct cable routing. Shadow RD maintains a consistent distance to the cassette for increased shift stability. The reduced body width creates a sleek and smooth appearance, ensuring less damage in a crashA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Ultegra R8000 11 Speed Rear Derailleur - Grey - Short Cage}, Grey
  • £82.99
  • RRP £89.99
  • Saving you £8

Shimano Ultegra R8000 11 Speed Rear DerailleurNow compatible with a wider range of cassette tooth count options, the Ultegra R8000 11 Speed Rear Derailleur delivers has been optimised by Shimano to offer fast and accurate gear shifts with minimal rider effort. In addition to the slick shifting, it also adopts the “Shadow” cage design to sit closer to your bike's frame. This improving its aerodynamics and protects it should you be unlucky enough to have a crash. Race-ready, it’s made in two different cage sizes to suit your cassette size preference.Key Features: Material: Alloy Colour: Grey Speed: 11-Speed Compatibility: All Shimano 2x11-Speed road drivetrainsCage Size: Separate short and medium cage size options Cassette Size Capacity: Short Cage: 11-25T to 11-30T; Medium Cage: 11-28T to 11-34T Total Capacity: Short Cage: 35T; Medium Cage: 39T Mounting: Standard hanger mount or direct mount Clutch Type: No Shadow Technology Low-profile design Precise and accurate shifting Manufacturer's Part Number: Short Cage: RD-R8000-SS; Medium Cage: RD-R8000-GS Weight: Short Cage: 200g; Medium Cage: 210gTechnologies: Shadow RD: Traditional derailleurs extend wider than the profile of your bike. With its low-profile design, Shadow RD (Reduced main derailleur body) is a more compact derailleur that fits closer to the frame, with more direct cable routing. Shadow RD maintains a consistent distance to the cassette for increased shift stability. The reduced body width creates a sleek and smooth appearance, ensuring less damage in a crashA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Ultegra R8000 11 Speed Rear Derailleur Rear Derailleurs
  • £94.99

Compatible with a cassette tooth count range of 11-28T to 11-34T and adopting Shadow technology from Shimano's mountain bike (MTB) range, the Shimano Ultegra R8000 rear derailleur ensures a smooth ride in even the highest and steepest mountain areas. The integrated Shadow technology is race-proven and with its low profile design, this slick operating road rear derailleur is aerodynamic, more compact and fits closer to the frame, ensuring less damage in a crash. Technologies: Shadow: Shadow design features a super low profile design and optimised slant angle for super light shifting action. HG-EV: HG-EV cassette sprocket is for rider-tuned gear combination and cadence management. Shimano provides the optimal 11-speed drivetrain gear ratio; you can choose from the wider and closer gear combinations available to match various riding disciplines. HG-EV cassette sprocket is obtained 11-speed gear without compromising the 10-speed durability and improved HYPERGLIDE shifting HG-X11 Chain Compatible: Silky driving, accurate shifting. HG-X11 directional chain ensures smoother shifts and greater overall performance. The right and left sides are optimised for front and rear shifting respectively

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Shimano Ultegra R8000 11 Speed Road Cassette - Silver - 11-25t}, Silver
  • £53.99
  • RRP £84.99
  • Saving you £36

Shimano Ultegra R8000 11 Speed Road CassetteA model that Shimano enthusiasts have been waiting for, the Ultegra R8000 is now here. Updated and refined from previous models, it brings you the same technologies as seen on the top-end Dura-Ace range. This 11 speed road cassette is low in weight, highly durable and made in a wide range of tooth count options to suit your riding style and the terrain you ride on.Features:Use: Road  Speed: 11-speed  Compatibility: Shimano style 9,10 and 11 speed freehubs, 11 speed road drivetrains  Rider-tuned  DurableWeight: 232g (11-25T), 251g (11-28T), 269g (11-30T), 243g (12-25T), 300g (14-28T), 292g (11-32T)Manufacturer Reference Codes:  11-25T: CSR8000125; 11-28T: CSR8000128; 11-30T: CSR8000130; 11-32T: CSR8000132; 12-25T: CSR8000225; 14-28T: CSR8000428A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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