Chainsets

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Bolt on a new chainset - the chainrings, and the crank arms which turn them - to improve your drivetrain performance. Chainsets and cranks are increasingly specialised and, depending on which one you choose, can save weight, improve power transfer through increased stiffness, or just be plain stronger. For mountain bikes, there are the ever-popular Shimano models, alongside Raceface and FSA, so you can choose the right model for your type of riding. For roadies, there's have double chainsets - compact versions for sportive riders, and standard for racers - and triple chainsets for those wanting a wider variety of gears. There are special chainsets for single-speed bikes as well.

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Search found 653 Chainsets

Shimano SLX M7000 11 Speed Chainset Chainsets
  • £134.99

The HollowTech II Chainset features hollow forged crank arms which are both lightweight and rigid whilst being incredibly strong and durable. HollowTech II integrated bottom bracket design uses a wide bearing placement with a large axle diameter for increased stiffness, efficiency and added durability. HG-X chainring with patented spike pins give smooth and fast gear shifts under load. With a 48.8mm double ring chain line for use in conjunction with 135 / 142 mm O.L.D. We recommend that the bottom bracket is initially installed by a bike shop to ensure perfect facing and fit.

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Shimano SLX M7000 2x11 Speed MTB Chainset - Black - 34.24t}, Black
  • £134.99

Shimano SLX M7000 2x11 Speed MTB ChainsetSLX M7000 cranks now share premium technologies found in XTR M9000 and DEORE XT M8000 groups such as Shimano’s Dynamic Chain Engagement (DCE) for enhanced chain retention, driving rigidity and highly efficient, precise shifting.These cranks feature Hollowtech II technology for unrivalled strength-to-weight ratio.Features: Crank Arms: Hollowtech II Technology Compatible Bottom Bracket: BB-MT800/BB-MT800-PA Chainline: 48.8mm Cassette Compatibility: 11 Speed Bolt Circle Diameter: P.C.D. 96mm Average Weight: 788.7g (28-28T); 761.4g (36-26T); 739.8g (34-24T) BB Shell Width: 68, 73mm Optimised gear combination to improve shifting quality and driving efficiency Compatible with 11-40/11-42 cassettesA 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 SLX M7000 2x11 Speed MTB Chainset - Black - 36.26t}, Black
  • £134.99

Shimano SLX M7000 2x11 Speed MTB ChainsetSLX M7000 cranks now share premium technologies found in XTR M9000 and DEORE XT M8000 groups such as Shimano’s Dynamic Chain Engagement (DCE) for enhanced chain retention, driving rigidity and highly efficient, precise shifting.These cranks feature Hollowtech II technology for unrivalled strength-to-weight ratio.Features: Crank Arms: Hollowtech II Technology Compatible Bottom Bracket: BB-MT800/BB-MT800-PA Chainline: 48.8mm Cassette Compatibility: 11 Speed Bolt Circle Diameter: P.C.D. 96mm Average Weight: 788.7g (28-28T); 761.4g (36-26T); 739.8g (34-24T) BB Shell Width: 68, 73mm Optimised gear combination to improve shifting quality and driving efficiency Compatible with 11-40/11-42 cassettesA 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 SLX M7000 2x11 Speed MTB Chainset - Black - 38.28t}, Black
  • £134.99

Shimano SLX M7000 2x11 Speed MTB ChainsetSLX M7000 cranks now share premium technologies found in XTR M9000 and DEORE XT M8000 groups such as Shimano’s Dynamic Chain Engagement (DCE) for enhanced chain retention, driving rigidity and highly efficient, precise shifting.These cranks feature Hollowtech II technology for unrivalled strength-to-weight ratio.Features: Crank Arms: Hollowtech II Technology Compatible Bottom Bracket: BB-MT800/BB-MT800-PA Chainline: 48.8mm Cassette Compatibility: 11 Speed Bolt Circle Diameter: P.C.D. 96mm Average Weight: 788.7g (28-28T); 761.4g (36-26T); 739.8g (34-24T) BB Shell Width: 68, 73mm Optimised gear combination to improve shifting quality and driving efficiency Compatible with 11-40/11-42 cassettesA 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 SLX M7100 12 Speed Chainset Cranksets
  • £144.99

This rigid and lightweight model delivers a smooth driving experience as you weave your way around the trails, even when riding over rowdy terrain conditions. Its 36 to 26 tooth ratio provides an extra wide range for more simple gearing than racing groupsets. Furthermore, its forged aluminium crank arm construction and steel inner chainring deliver a top-level strength to weight set-up. This is the perfect choice of upgrade for completing your dream bike build and getting the best performance out of every off-road adventure. Technologies: Hollowtech II: Providing the best balance of stiffness, strength, weight and rotating performance. The concept of Hollowtech II technology is focused on producing a superior crankset which 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 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 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. The Hollowtech II crankset has been developed by pursuing the optimum balance of stiffness & rotating performance in a lightweight and beautiful crankset design. Moreover, Hollowtech II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.

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Shimano SLX M7100 12 Speed MTB Chainset - Black - 36.26t}, Black
  • £144.99

Shimano SLX M7100 12 Speed MTB ChainsetThis hollow-forged 12 speed chainset maximises your MTB's power transfer while reducing weight, so you can get the best performance out of every ride. It features an extra wide 36 to 26 tooth range for even easier gearing than racing groupsets. Rigid and lightweight, you'll notice how smooth driving a crankset can be when riding over bumpy terrain conditions. If you're looking for powerful acceleration and precise shifting, this high-quality model is the perfect place to start.Features: Material: Crank Arm, Outer Chainring: Anodised Aluminium; Axle, Inner Chainring: Steel Use: MTB Mount: Direct Mount Speed: 12 speed Number of Chainrings: 2 Arm: 4-arm Tooth Count: 36/26T Chainline: 48.8mm Q Factor: 172mm Recommended Bottom Bracket: BB-MT800 (Thread Type); BB-MT800-PA (Pressfit) Compatible Chain: HG 12 speedTechnologies: Hollowtech II: Providing the best balance of stiffness, strength, weight and rotating performance. The concept of Hollowtech II technology is focused on producing a superior crankset which 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 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 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. The Hollowtech II crankset has been developed by pursuing the optimum balance of stiffness & rotating performance in a lightweight and beautiful crankset design. Moreover, Hollowtech II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.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 SLX M7100 Chainset - 36/26 - 165mm
  • £114.29
  • RRP £144.99
  • Saving you £21

All-mountain SLX HollowTech II chainset is tough and aggressive yet also lightweight and excellent value The HollowTech II Chainset features hollow forged crank arms which are both lightweight and rigid whilst being incredibly strong and durable HollowTech II integrated bottom bracket design uses a wide bearing placement with a large axle diameter for increased stiffness, efficiency and added durability 70 degree spider arm for optimal rigidity 36/26T combination 12-speed chainrings We recommend that the bottom bracket is initially installed by a bike shop to ensure perfect facing and fit For use with 12-speed HG MTB chains only With a 48.8mm double ring chain line for use in conjunction with 142 mm O.L.D.

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Shimano Sora R3030 9 Speed Triple Chainset - Black - 50.39.30t}, Black
  • £114.99

Shimano Sora R3030 9 Speed Triple ChainsetAll set for taking you from A to B on your road bike, this 3x9 speed crankset uses a high-end 4-arm design and compact 50-39-30T chainrings. It features a tough aluminium crank arm material with a steel axle, making it ideal at handling the increased pressure from fitness riding and longer journeys. Shimano has also equipped this version with its renowned Hyperglide sprockets that incorporate specially positioned shift ramps and tooth profiles for improved chain control during shifting. This results in fast and responsive indexed shifting as you travel from the smooth city pavement to the countryside. One final highlight is this model's 2-piece crank design that offers increased rigidity and less weight.Features:Crank Arm Material: AluminiumCrank Axle Material: SteelChainring Material: Large: Aluminium; Middle: Steel and Small: SteelUse: Road, FitnessUse: Road, FitnessSpeed: 9 speedNumber of Chainrings: 3Series: SoraBB Shell Width: 70mmBB Included: No2-piece Construction: YesChainline: 43.5mmChain Ring Combination: 50, 39 and 30TCompatibile BB Type: OutboardCompatible Chain: HG 9 speedCrank Arm Length: Multiple options available to selectGear Arms: 4Chain Guard / Bash Guard: Sold separatelyBCD: 110/74mmRecommended Bottom Bracket: Pressfit: BB-RS500-PB; Threaded (Normal): BB-RS500Q-Factor: 158.8mmPart Numbers: 170mm: FCR3030C090; 165mm: FCR3030A090 and 175mm: FCR3030E090Weight: 1180g (without bottom bracket)Technologies:2-Piece Crankset: Integrated crank arm and bottom bracket. Increased rigidity with less weight. Wider bearing positioning. Rigidity is enhanced and pedaling force is efficiently transmitted. Precision Bearings. Low maintenance and simplified installationHG HyperGlide: 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 cassette sprocket, which was developed for the MTB 10-speed system, underwent comprehensive optimization to achieve super-highly efficient shifting.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 Sora R3030 9 Speed Triple Chainset Cranksets
  • £114.99

This crankset features a tough aluminium crank arm material with a steel axle, making it ideal at handling the increased pressure from fitness riding and longer journeys.  It offers fast and responsive indexed shifting as you travel from the smooth city pavement to the countryside. One final highlight is this model's 2-piece crank design that offers increased rigidity and less weight. Item Top Features Continued: Chainline: 43.5mm Chain Ring Combination: 50, 39 and 30T Compatible BB Type: Outboard Compatible Chain: HG 9 speed Crank Arm Length: Multiple options available to select Gear Arms: 4 Chain Guard / Bash Guard: Sold separately BCD: 110/74mm Recommended Bottom Bracket: Pressfit: BB-RS500-PB; Threaded (Normal): BB-RS500 Q-Factor: 158.8mm Part Numbers: 170mm: FCR3030C090; 165mm: FCR3030A090 and 175mm: FCR3030E090 Weight: 1180g (without bottom bracket) Technologies: 2-Piece Crankset: Integrated crank arm and bottom bracket. Increased rigidity with less weight. Wider bearing positioning. Rigidity is enhanced and pedalling force is efficiently transmitted. Precision Bearings. Low maintenance and simplified installation. HG HyperGlide Compatible: 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 cassette sprocket, which was developed for the MTB 10-speed system, underwent comprehensive optimization to achieve super-highly efficient shifting.

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Shimano STEPS E7000 Drive Unit Cover Mount Bolt Exposed Chainset Tools
  • £20.99

Shimano's SM-DUE70-B drive unit cover offers a clean and simple E-bike look with the mount bolt exposed for Shimano STEPs E7000 E-bike drive systems.

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Shimano STEPS EW-SW100 Satellite on/off Switch Chainset Tools
  • £84.99

This on/off switch is specifically engineered for use with Shimano STEPs E-bikes. It features a compact, semi-integrated frame charging port and can be updated via the E-Tube project application. - Compact, semi-integrated frame charging port - Minimum frame open hole - Connector connection same as EW-SD50 Technologies: E-Tube: The E-TUBE platform's “Plug & play” and D-FLY wireless connections make it easier than ever to check the system's status, and apply customized settings to DI2 and SHIMANO STEPS components with a PC, tablet or smart phone. Wirelessly customize functions like SHIMANO SYNCHRONIZED SHIFT over Bluetooth® while out on a ride. Automatically checks for firmware updates on each startup to ensure all components are running the latest version. PC, smartphone and tablet applications can help you quickly diagnose errors and simplify the repair process. Beautiful visualization of your real-time SHIMANO STEPS riding data on your smartphone. Advanced all-weather design resists rusting, stretching, and freezing.

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Shimano STEPS SM-DUE10 Speed Sensor Chainsets
  • £34.99

This model is a speed sensor unit for Shimano STEPS E-bike platforms. It is designed to work with all brakes that are available for the Shimano STEPs system. Technologies: E-Tube: The E-TUBE platform's “Plug & play” and D-FLY wireless connections make it easier than ever to check the system's status, and apply customized settings to DI2 and SHIMANO STEPS components with a PC, tablet or smart phone. Wirelessly customize functions like SHIMANO SYNCHRONIZED SHIFT over Bluetooth® while out on a ride. Automatically checks for firmware updates on each startup to ensure all components are running the latest version. PC, smartphone and tablet applications can help you quickly diagnose errors and simplify the repair process. Beautiful visualization of your real-time SHIMANO STEPS riding data on your smartphone. Advanced all-weather design resists rusting, stretching, and freezing.

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