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Shimano Ultegra 6700 10 Speed Road Cassette - Silver - 12-25t}, Silver
  • £74.99

Shimano Ultegra 6700 10 Speed Road CassetteManufactured from a tough alloy, this 10-speed Ultegra cassette brings you the perfect mix of low weight and durability. Equipped with Shimano's Hyperglide shifting technology, it will consistently deliver clean and crisp gear changes, even when you're pedalling hard on a sprint or a climb.Reasons to Buy: Tough Alloy construction. 10 speed. Lightweight and durable.Hyperglide shifting technology.Features: Material: Alloy Speed: 10-speed Compatibility: 10-speed chains and all Shimano 10-speed road rear derailleurs Use: Road Hyperglide sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wear Wide gear range to meet the demands of all types of rider Weight: 208g (11-23T)Please Note: This product does not come with a spacer.Manufacturer Reference Codes: 11-25T: CS670010125; 11-23T: CS670010123; 11-28T: CS670010128; 12-25T: CS670010225; 12-30T: CS670010230A 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 Dura-Ace 7900 10 Speed Road Cassette - Silver - 11-28t}, Silver
  • £200.99

Shimano Dura-Ace 7900 10 Speed Road CassetteThis Dura-Ace 10-speed cassette is typically lightweight and designed for maximum performance. Featuring four titanium cogs, the new Dura-Ace 7900 cogset has further improved shifting quality by creating a more rigid aluminium carrier unit along with a re-engineered tooth profile. The Shimano Dura-Ace 7900 10-Speed Road Cassette shaves 10 grams from the previous model without sacrificing strength; the close gear ratios allow effective and efficient cadence control.Features:Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under loadClose ratio gearing allows a more efficient use of energy through finer cadence controlLargest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigidity4 largest sprockets are made from titanium to reduce weight without sacrificing strengthSprockets are extensively cut away and drilled to further reduce weight without reducing rigidityNickel-plated finish offers hard wearing resistance to corrosionAlloy cassette lockringSpecifications:Sprocket Carrier: AlloyNumber of Sprockets: 10-speedSprocket Material: Steel/TitaniumChain Compatibility: Super Narrow HG for 10-speedWeight: 163g (11-23T)Cassette Gearing:11-21T: 11-12-13-14-15-16-17-18-19-2111-23T: 11-12-13-14-15-16-17-19-21-2311-25T: 11-12-13-14-15-17-19-21-23-2511-27T: 11-12-13-14-15-17-19-21-24-2711-28T: 11-12-13-14-15-17-19-21-24-2812-23T: 12-13-14-15-16-17-18-19-21-2312-25T: 12-13-14-15-16-17-19-21-23-2512-27T: 12-13-14-15-16-17-19-21-24-27A 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 R8100 12 Speed Cassette - Silver - 11-34t}, Silver
  • £119.99

Shimano Ultegra R8100 12 Speed CassetteThe Ultegra R8100 12 Speed Cassette from Shimano is optimised to shift with exceptional smoothness and precision. It features Shimano's Hyperglide+ gear shifting technology for outstanding gear shifting accuracy and efficiency. And it's compatible with Shimano 12-Speed drivetrain systems.The uninterrupted shifting experience of the ULTEGRA R8100 12-Speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-Speed FREEHUB bodies. HYPERGLIDE+ Smooth and Efficient Gear Shifting HYPERGLIDE+ cassettes revolutionized off-road shifting with its seamless shifts both up and down the gear range. Now it's time for technology to change road cycling. Even during maximal efforts up a climb or racing a friend, riders no longer need to back off to perform a shift. In any gear, Shimano ULTEGRA R8150 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing HYPERGLIDE FREEHUB bodies. All this while increasing to 12-gears, ULTEGRA CS-R8100 cassettes are the new paradigm in road shifting. HYPERGLIDE+ drivetrain's redesigned cassette and chain promote the next generation of competitive bike riding by enhancing speed, shifting efficiency and smoothness over any terrain. Key Features: Better chain engagement, stronger retention, and smoother pedalling provide greater power and confidence over rapidly changing terrain. Definitive up and downshifting in both directions boost riders' concentration and acceleration. An ultra-efficient drivetrain with smoother power transmission increases comfort and reduces rider stress. A wide range of gearing choices, cassette options and the choice of a single or double front chainring, support a wide variety of riding styles, abilities and preferences.Features: Series: Ultegra R8100 Series Type: HYPERGLIDE+ Compatible Chain: Shimano HG 12-Speed Refined 12 step gear combination provides peak efficiency and accelerating performance for every racing situation Faster, smoother shifts under maximum pedalling force Compatible with new 12-Speed and road 11-Speed FREEHUB body Average Weight: 291g (11-30T); 345g (11-34T)A 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 R8100 12 Speed Cassette - Silver - 11-30t}, Silver
  • £119.99

Shimano Ultegra R8100 12 Speed CassetteThe Ultegra R8100 12 Speed Cassette from Shimano is optimised to shift with exceptional smoothness and precision. It features Shimano's Hyperglide+ gear shifting technology for outstanding gear shifting accuracy and efficiency. And it's compatible with Shimano 12-Speed drivetrain systems.The uninterrupted shifting experience of the ULTEGRA R8100 12-Speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-Speed FREEHUB bodies. HYPERGLIDE+ Smooth and Efficient Gear Shifting HYPERGLIDE+ cassettes revolutionized off-road shifting with its seamless shifts both up and down the gear range. Now it's time for technology to change road cycling. Even during maximal efforts up a climb or racing a friend, riders no longer need to back off to perform a shift. In any gear, Shimano ULTEGRA R8150 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing HYPERGLIDE FREEHUB bodies. All this while increasing to 12-gears, ULTEGRA CS-R8100 cassettes are the new paradigm in road shifting. HYPERGLIDE+ drivetrain's redesigned cassette and chain promote the next generation of competitive bike riding by enhancing speed, shifting efficiency and smoothness over any terrain. Key Features: Better chain engagement, stronger retention, and smoother pedalling provide greater power and confidence over rapidly changing terrain. Definitive up and downshifting in both directions boost riders' concentration and acceleration. An ultra-efficient drivetrain with smoother power transmission increases comfort and reduces rider stress. A wide range of gearing choices, cassette options and the choice of a single or double front chainring, support a wide variety of riding styles, abilities and preferences.Features: Series: Ultegra R8100 Series Type: HYPERGLIDE+ Compatible Chain: Shimano HG 12-Speed Refined 12 step gear combination provides peak efficiency and accelerating performance for every racing situation Faster, smoother shifts under maximum pedalling force Compatible with new 12-Speed and road 11-Speed FREEHUB body Average Weight: 291g (11-30T); 345g (11-34T)A 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 Dura-Ace R9200 12 Speed Cassette - Silver - 11-34t}, Silver
  • £249.99
  • RRP £329.99
  • Saving you £24

Shimano Dura-Ace R9200 12 Speed CassetteThe Dura-Ace R9200 12 Speed Cassette from Shimano provides fast, smooth and seamless gear shifting performance anywhere. The Dura-Ace 12-Speed gear system is a top-level gearset, and this cassette offers a wide gear range that's reliable, efficient and lightweight.The uninterrupted shifting experience of the Dura-Ace R9200 12-speed cassette range lets you climb, sprint, and push your limits without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed freehub bodies. Shimano HYPERGLIDE+ Gear Shifting PrecisionHYPERGLIDE+ cassettes have revolutionized off-road shifting with their seamless shifts both up and down the gear range. Now it's time for technology to change road cycling. Even during maximal efforts up a climb or nearing the finish line, riders no longer need to back off to perform a shift. In any gear, Dura-Ace R9250 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing 11-speed freehub bodies. All this while increasing to 12-gears and without increasing weight, Dura-Ace CS-R9200 cassettes are the new paradigm in road shifting. Features: Series: Dura-Ace R9200 Series Faster, seamless shifts under maximum pedalling load Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation Add wider 34T spec for pro-race usage Compatible with new 12-Speed and road 11-Speed Freehub body Gear Combination: 11-12-13-14-15-16-17-19-21-24-27-30T / 11-12-13-14-15-17-19-21-24-27-30-34T Type: HYPERGLIDE+ Compatible Chain: Shimano HG 12-Speed Weight: 223g (11-30T); 253g (11-34T)A 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 Dura-Ace R9200 12 Speed Cassette - Silver - 11-30t}, Silver
  • £199.99
  • RRP £329.99
  • Saving you £39

Shimano Dura-Ace R9200 12 Speed CassetteThe Dura-Ace R9200 12 Speed Cassette from Shimano provides fast, smooth and seamless gear shifting performance anywhere. The Dura-Ace 12-Speed gear system is a top-level gearset, and this cassette offers a wide gear range that's reliable, efficient and lightweight.The uninterrupted shifting experience of the Dura-Ace R9200 12-speed cassette range lets you climb, sprint, and push your limits without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed freehub bodies. Shimano HYPERGLIDE+ Gear Shifting PrecisionHYPERGLIDE+ cassettes have revolutionized off-road shifting with their seamless shifts both up and down the gear range. Now it's time for technology to change road cycling. Even during maximal efforts up a climb or nearing the finish line, riders no longer need to back off to perform a shift. In any gear, Dura-Ace R9250 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing 11-speed freehub bodies. All this while increasing to 12-gears and without increasing weight, Dura-Ace CS-R9200 cassettes are the new paradigm in road shifting. Features: Series: Dura-Ace R9200 Series Faster, seamless shifts under maximum pedalling load Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation Add wider 34T spec for pro-race usage Compatible with new 12-Speed and road 11-Speed Freehub body Gear Combination: 11-12-13-14-15-16-17-19-21-24-27-30T / 11-12-13-14-15-17-19-21-24-27-30-34T Type: HYPERGLIDE+ Compatible Chain: Shimano HG 12-Speed Weight: 223g (11-30T); 253g (11-34T)A 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 Dura-Ace R9200 12 Speed Cassette - Silver - 11-28t}, Silver
  • £329.99

Shimano Dura-Ace R9200 12 Speed CassetteThe Dura-Ace R9200 12 Speed Cassette from Shimano provides fast, smooth and seamless gear shifting performance anywhere. The Dura-Ace 12-Speed gear system is a top-level gearset, and this cassette offers a wide gear range that's reliable, efficient and lightweight.The uninterrupted shifting experience of the Dura-Ace R9200 12-speed cassette range lets you climb, sprint, and push your limits without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed freehub bodies. Shimano HYPERGLIDE+ Gear Shifting PrecisionHYPERGLIDE+ cassettes have revolutionized off-road shifting with their seamless shifts both up and down the gear range. Now it's time for technology to change road cycling. Even during maximal efforts up a climb or nearing the finish line, riders no longer need to back off to perform a shift. In any gear, Dura-Ace R9250 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing 11-speed freehub bodies. All this while increasing to 12-gears and without increasing weight, Dura-Ace CS-R9200 cassettes are the new paradigm in road shifting. Features: Series: Dura-Ace R9200 Series Faster, seamless shifts under maximum pedalling load Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation Add wider 34T spec for pro-race usage Compatible with new 12-Speed and road 11-Speed Freehub body Gear Combination: 11-12-13-14-15-16-17-19-21-24-27-30T / 11-12-13-14-15-17-19-21-24-27-30-34T Type: HYPERGLIDE+ Compatible Chain: Shimano HG 12-Speed Weight: 223g (11-30T); 253g (11-34T)A 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 Belt Drive Cassette - Silver - 20t}, Silver
  • £2.49
  • RRP £49.99
  • Saving you £95

Shimano Belt Drive CassetteThe Continental Belt Drive Cassette is a drivetrain sprocket that's compatible for use with the Continental Belt Drive (CBD) system.The CBD sprockets made of aluminium and stainless steel provide a balance of stability and optimal weight. Sprockets up to 28 teeth are made from high-strength stainless steel for reduced wear and tear and improved stability. Sprockets with 34 teeth are made from aluminium for weight reasons and have a special surface finish to reduce wear.Features: Tooth Count: 20T Drivetrain Compatibility: Continental Belt Drive (CBD) Belt Drive OnlyBuy Continental Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Tourney TZ500 7 Speed Freewheel - Black-Gold - 14t}, Black-Gold
  • £29.99

Shimano Tourney TZ500 7 Speed FreewheelSpecifically designed for use with 7 speed HG/UG chains, this versatile freewheel offers quick and dependable operation. It features a rock-solid steel construction, which makes it perfect at handling all the knocks and bumps that are associated with long distance journeys. Whether you're using it on a mountain bike or road bike, this model's HyperGlide sprockets allow you to benefit from smooth and improved chain control during shifting.Features: Material: Steel Use: MTB, Road Speed: 7 speed Series: Tourney Tooth Combination: 14-16-18-20-22-24-34T Compatible Chain: HG/UG Tooth Count: Multiple options available to select Part Number: MFTZ5007434 Lightweight construction Easy assembly featureTechnologies: HyperGlide Sprockets: The distinctively designed HYPERGLIDE sprockets incorporate specially positioned shift ramps and tooth profiles for improved chain control during shifting. Fast and responsive indexed shifting is the result. The HG freewheel sprocket, which was developed for the MTB 7 speed system, underwent comprehensive optimization to achieve super-highly efficient shifting. HG sprockets: Guide the chain quickly and directly to the next sprocket without override. Conventional sprockets: Cause the chain to ride up and over the gear teeth before engaging the sprocket.A 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 Tourney TZ500 7 Speed Freewheel - Black-Gold - 14-28t}, Black-Gold
  • £24.99

Shimano Tourney TZ500 7 Speed FreewheelSpecifically designed for use with 7 speed HG/UG chains, this versatile freewheel offers quick and dependable operation. It features a rock-solid steel construction, which makes it perfect at handling all the knocks and bumps that are associated with long distance journeys. Whether you're using it on a mountain bike or road bike, this model's HyperGlide sprockets allow you to benefit from smooth and improved chain control during shifting.Features: Material: Steel Use: MTB, Road Speed: 7 speed Series: Tourney Tooth Combination: 14-16-18-20-22-24-34T Compatible Chain: HG/UG Tooth Count: Multiple options available to select Part Number: MFTZ5007434 Lightweight construction Easy assembly featureTechnologies: HyperGlide Sprockets: The distinctively designed HYPERGLIDE sprockets incorporate specially positioned shift ramps and tooth profiles for improved chain control during shifting. Fast and responsive indexed shifting is the result. The HG freewheel sprocket, which was developed for the MTB 7 speed system, underwent comprehensive optimization to achieve super-highly efficient shifting. HG sprockets: Guide the chain quickly and directly to the next sprocket without override. Conventional sprockets: Cause the chain to ride up and over the gear teeth before engaging the sprocket.A 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 Deore M6100 12 Speed MTB Cassette - Silver - 10-51t}, Silver
  • £99.95

Shimano M6100 Deore 12 Speed CassetteWhether you're exploring the mountains with your friends or shredding the trails on your own, this cassette is designed for fast and smooth performance. It features Hyperglide sprockets, which have a computer designed tooth configuration with contoured shift gates. This results in a crisp and smooth shift even under load. In addition, its close ratio gearing allows for a more efficient use of energy through finer cadence control. This model's sprockets are also cut away and drilled to reduce weight without reducing rigidity.Features:Material: Alloy Use: MTB Ratio: 10-51T Sprockets: Hyperglide Compatibility: For use with 12 speed MTB chains Speed: 12 speed Part Number: CSM6100051 Weight: 534g (approx)Technologies: Hyperglide Sprockets: Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load. Close Ratio Gearing: Close ratio gearing allows a more efficient use of energy through finer cadence control. Sprockets are cut away and drilled to reduce weight without reducing rigidity. A 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 M5100 Deore 11 Speed Cassette - Silver - 11-51t}, Silver
  • £59.99
  • RRP £79.99
  • Saving you £25

Shimano M5100 Deore 11 Speed CassetteEngineered for reliable performance on every MTB ride, this 11 speed cassette gives you smooth shifting operation from its lightweight and minimal design sprocket carrier. It features Hyperglide sprockets, which use a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load. Its sprockets are also cut away and drilled to reduce weight without reducing rigidity. One final highlight is its close ratio gearing allows a more efficient use of energy through finer cadence control.Features: Use: MTB Speed: 11 speed Sprockets: Hyperglide sprockets Chain Compatibility: For 11-speed HG-EV MTB chains Ratio: Mutliple options availablePart Numbers: 11-42T: CSM5100142; 11-51T: CSM5100151Technologies: Hyperglide Sprockets: Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load. Sprockets are cut away and drilled to reduce weight without reducing rigidity. Close Ratio Gearing: Close ratio gearing allows a more efficient use of energy through finer cadence control.A 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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