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Shimano Dura-Ace 11 Speed Road Double Chainset - Black - 53.39t}, Black
  • £509.99

Shimano Dura-Ace R9100 11 Speed Road Double ChainsetThe Shimano Dura-Ace R9100 11 Speed Road Double Chainset boasts Shimano's well-known 4-arm hollow spider that is constructed from hollow-forged aluminium. This chainset has been completely redesigned to ensure it boasts the best combination of lightweight and rigid construction. The chainset has been adapted by Shimano to work with disc brake road bikes that have a 135mm rear hub spacing and shorter chainstays without the need to increase Q-factor thanks to its wider chainring spacing. Although the crank arms and spider arms are bigger, this increases overall stiffness, and the chainset has dropped 7g of weight since its previous edition.The Double version offered here comes in numerous gear combinations to best suit each individual riders needs.Please note: A bottom bracket is NOT included.Features:Enhanced design saves 7g while maintaining rigidityIconic 4-arm construction maintains high rigidity and reduces weightOptimised crank arm design strengthens key stress zonesNew chainring tooth profile is adapted for race bike specific disc brake systemsAccommodates shorter chainstays (410mm) with 135mm OLD rear spacingHollowglide chainring construction maintains smooth shifting whilst reducing weight and increasing stiffnessWeight: 621g (53.39T)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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Stages Cycling Stages Power G3 Dura-Ace 9200 - Left Only
  • £500.00

The new single-sided Stages Power L meter is built on to a non-drive-side Shimano Dura-Ace R9200 crank arm and is compatible with all Shimano Hollowtech II road drivetrains.

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Shimano Dura Ace R9100 Power Meter 11sp Crankset - Black - 96mm}, Black
  • £499.99
  • RRP £999.99
  • Saving you £50

Shimano Dura Ace R9100 Power Meter 11sp CranksetSetting a new standard in road cycling data collection, this superb crankset features a tough alloy construction which makes it immensely robust as you pedal. Coming equipped with a revised design, this superb version delivers an iconic appearance which is adapted for race-specific disc brake systems while still offering a wide gearing ratio. Bluetooth and ANT+ ConnectivityDesigned for ease of use, this stunning version is kitted out with both Bluetooth and ANT+ connectivity. This allows you to easily pair it with your smartphone and favourite apps to view your performance data and results.Rechargeable Waterproof Power MeterEngineered for all-weather conditions, this sleek model is equipped with a waterproof finish which means you can enjoy accurate data results in the wettest of riding conditions. With an integrated rechargeable battery at its heart, you'll benefit from up to 300+ hours of pedalling precision. This means you can spend less time waiting for it to charge and more time enjoying the ride. Features: Material: Alloy Use: Road BCD: 96mm Speed: 11 speed Connectivity: Bluetooth and ANT+ Battery: Integrated rechargeable Li-on battery Battery Life: 300+ hours Update: Wireless firmware update systemA 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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Stages Cycling Power Meter L Dura-Ace R9200 Power Meter Chainsets
  • £499.99

Developed to give you world-class training on your road bike, this power meter features a Shimano Dura-Ace R9200 crankarm (left arm only) and a Stages Cycling (non-drive side left) power meter. Compatible with all frames that fit Shimano Hollowtech II cranks, this model offers +/- 1,5% accuracy in all conditions, so you can enjoy precise data measurement. It is also both ANT+ and Bluetooth Smart ready for seamless integration with your wireless smart device, making it easy to run Stages Link, Training Peaks, Strava, Garmin Training Center and others. Powered by a high-quality CR2032 coin cell battery, it provides up to 200+ hours of battery life and comes with a range of ride-enhancing technologies, so you can get the most out of every training session. Whether you're training for an event or trying to beat your own personal best, this power meter is engineered for performance. Tour Proven Stages Power has carried riders to three consecutive Tour de France victories, plus many more world and national championships. If you believe racing provides the world’s best product proving ground, then Stages Power is proven as the world’s best power meter. Active Temperature Compensation as Standard Equipment Consistency of measurement is the most important feature of a power meter. Stages Power was the first meter to make temperature compensation an automatic process ensuring accurate readings no matter the environmental conditions. Active Temperature Compensation (ATC) is the key reason a rider can trust data from Stages Power in all conditions. Individual Meter Calibration for the Most Accurate Results Each Stages Power meter is calibrated individually to ensure a +/- 1,5% accuracy level, which is the industry best for non-scientific power meters. Individual calibration means that you can trust the data produced by the Stages Cycling system, as it's a real measurement and not an estimation.   Technologies: - Power Meter Housing: Low profile design, with robust door interface. Tool-free battery replacement on the left arm and Phillips head screw access on the drive side. - Battery Life: 200+ hours (Coin Cell: CR2032). - Active temperature compensation. - Accelerometer-based cadence measurement or the option to use a Hall-Effect-based system with a magnet (coming soon). - Wirelessly upgradeable firmware. - LED indicator for visual indication of battery levels and zero-reset confirmation without connected app or head unit. - Updated accelerometer and addition of gyroscope for improved cadence resolution. - Upgraded BLE and ANT+ radios offer a 6x improvement of data transmission strength.   In The Box - Stages Power L: Non-drive-side power meter, High quality CR2032 coin cell battery. - Lifetime access to Stages Link for power meter management and firmware upgrade. - 2 months free access to Stages Link premium training and coaching features. - Product Identification Card with Serial Number and ANT+ ID Number. - User Guide.   Manufacturer's Part Numbers: STD92LZ Black 160mm STD92LA Black 165mm STD92LC Black 170mm STD92LD Black 172.5mm STD92LE Black 175mm

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Shimano Dura-Ace R9200 Chainset - 172.5mm - 52/36
  • £499.99
  • RRP £549.99
  • Saving you £9

The HollowTech II 12-speed Dura-Ace chainset offers the optimum balance of light weight and rigidity, making it the global choice for road racing's elite riders Hollow outer chainring, giving vast improvements in rigidity and 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 HollowTech II 4 arm cold forged hollow crank arms have been evolved to increase rigidity, reduce weight, and improve strength The teeth have been developed to work only in conjunction with the 12-speed chains for improved contact providing more efficiency and improved power transfer There is a wide range of chainring ratios and crank arm lengths available enabling customisation for all riders and racing disciplines HollowTech II integrated bottom bracket design uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling and increased durability

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Shimano Dura-Ace R9200 Chainset - 172.5mm - 54/40
  • £499.99
  • RRP £549.99
  • Saving you £9

The HollowTech II 12-speed Dura-Ace chainset offers the optimum balance of light weight and rigidity, making it the global choice for road racing's elite riders Hollow outer chainring, giving vast improvements in rigidity and 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 HollowTech II 4 arm cold forged hollow crank arms have been evolved to increase rigidity, reduce weight, and improve strength The teeth have been developed to work only in conjunction with the 12-speed chains for improved contact providing more efficiency and improved power transfer There is a wide range of chainring ratios and crank arm lengths available enabling customisation for all riders and racing disciplines HollowTech II integrated bottom bracket design uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling and increased durability

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Shimano Dura-Ace R9200 Chainset - 175mm - 52/36
  • £499.99
  • RRP £549.99
  • Saving you £9

The HollowTech II 12-speed Dura-Ace chainset offers the optimum balance of light weight and rigidity, making it the global choice for road racing's elite riders Hollow outer chainring, giving vast improvements in rigidity and 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 HollowTech II 4 arm cold forged hollow crank arms have been evolved to increase rigidity, reduce weight, and improve strength The teeth have been developed to work only in conjunction with the 12-speed chains for improved contact providing more efficiency and improved power transfer There is a wide range of chainring ratios and crank arm lengths available enabling customisation for all riders and racing disciplines HollowTech II integrated bottom bracket design uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling and increased durability

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Stages Cycling Power Meter L Dura-Ace R9200 - Black, Black
  • £499.99

Stages Cycling Power Meter L Dura-Ace R9200Featuring a Shimano Dura-Ace R9200 crankarm (left arm only) and a Stages Cycling (non-drive side left) power meter, this model is specifically developed to give you world-class training on your road bike. Compatible with all frames that fit Shimano Hollowtech II cranks, this model offers +/- 1,5% accuracy in all conditions, so you can enjoy precise data measurement. It is also both ANT+ and Bluetooth Smart ready for seamless integration with your wireless smart device, making it easy to run Stages Link, Training Peaks, Strava, Garmin Training Center and others. Powered by a high-quality CR2032 coin cell battery, it provides up to 200+ hours of battery life and comes with a range of ride-enhancing technologies, so you can get the most out of every training session. Whether you're training for an event or trying to beat your own personal best, this power meter is engineered for performance.Tour ProvenStages Power has carried riders to three consecutive Tour de France victories, plus many more world and national championships. If you believe racing provides the world's best product proving ground, then Stages Power is proven as the world's best power meter.Active Temperature Compensation as Standard EquipmentConsistency of measurement is the most important feature of a power meter. Stages Power was the first meter to make temperature compensation an automatic process ensuring accurate readings no matter the environmental conditions. Active Temperature Compensation (ATC) is the key reason a rider can trust data from Stages Power in all conditions.Individual Meter Calibration for the Most Accurate ResultsEach Stages Power meter is calibrated individually to ensure a +/- 1,5% accuracy level, which is the industry best for non-scientific power meters. Individual calibration means that you can trust the data produced by the Stages Cycling system, as it's a real measurement and not an estimation.Technologies: Power Meter Housing: Low profile design, with robust door interface. Tool-free battery replacement on the left arm and Phillips head screw access on the drive side. Battery Life: 200+ hours (Coin Cell: CR2032). Active temperature compensation. Accelerometer-based cadence measurement or the option to use a Hall-Effect-based system with a magnet (coming soon). Wirelessly upgradeable firmware. LED indicator for visual indication of battery levels and zero-reset confirmation without connected app or head unit. Updated accelerometer and addition of gyroscope for improved cadence resolution. Upgraded BLE and ANT+ radios offer a 6x improvement of data transmission strength.In The Box: Stages Power L: Non-drive-side power meter, High quality CR2032 coin cell battery. Lifetime access to Stages Link for power meter management and firmware upgrade. 2 months free access to Stages Link premium training and coaching features. Product Identification Card with Serial Number and ANT+ ID Number. User Guide.Manufacturer's Part Numbers: STD92LZ Black 160mm STD92LA Black 165mm STD92LC Black 170mm STD92LD Black 172.5mm STD92LE Black 175mmBuy Stages Cycling Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Dura Ace R9100 Power Meter Crankset Cranksets
  • £499.99
  • RRP £999.99
  • Saving you £50

All set for a top-level experience, this superb component features a tough alloy construction which makes it immensely durable as you pedal. Coming equipped with a revised design, this sleek version delivers an iconic appearance which is adapted for race-specific disc brake systems while still offering a wide gear ratio.  Rechargeable Waterproof Power Meter Engineered for all-weather conditions, this brilliant model is equipped with a waterproof finish which means you can enjoy accurate data result in the wettest of riding conditions. With an integrated rechargeable battery at its heart, you'll benefit from up to 300+ hours of pedalling precision. This means you can spend less time waiting for it to charge and more time enjoying the ride.  

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4iiii Precision 3 Power Meter - Dura Ace 9200 - 170mm
  • £495.00

It's no easy feat to improve upon a power meter that was already one of the lightest, cheapest, and most accurate on the market, but the 4iiii Precision 3 has done just that. Regardless of whether you are contesting Iron Man triathlons, stages of the Tour de France, or town-sign sprints during the weekend club run, the Precision 3 offers truly world-class technology, at an affordable price point. SIMPLY CONNECT As you’d expect, the 4iiii Precision 3 is feature packed and easy to install. It incorporates Bluetooth and ANT+ connectivity, so you can connect it to your choice of bike computer or indoor trainer. Pair it with a compatible device, and it'll work with a plethora of indoor training software, including TrainerRoad and Zwift. Installation of the device is as simple as installing any Shimano left-side crank arm. The power meter arrives pre-attached to the Dura Ace 9200 crank arm, all that's left for you to do is install it on your bike, as you would a regular crank arm. Once installed, follow the set-up instructions via the app, available on iOS and Android. With the app you can also update the firmware, check battery status, and calibrate your power meter. LONGER-LASTING BATTERY In the previous iteration, the Precision already boasted a respectable 120-hour battery life. For the latest version, this has been increased to an industry-leading 800 hours. Operated by a simple to replace CR2032 battery, even the most dedicated cyclists will rarely need to replace the battery. Incredibly, despite this increase in battery life, the casing that houses the device is almost half as thick as previously, making it compatible with even more frames. Handily, LED lights have been added to indicate battery life, connectivity, and calibration status. ACCURATE AND RELIABLE A power meter lives and dies by its accuracy and reliability; after all, there is little point in looking at data from a device that can't be trusted. Over the years, 4iiii have established themselves as a reputable player in the industry, and are well regarded for the accuracy and reliability of their devices. As you'd expect, then, the Precision 3 is no different. Offering accuracy of +/-1%, there are few if any competitors on the market claiming anything better, and you can count on this accuracy to remain reliable. What’s more, with a IPX7 water resistance rating, you can ride into the depths of winter assured that your power meter will survive. Product Features: 800-hours battery life LED lights to indicate – on (green), zero offset (blue), and low battery (red) 3D Strain Gauge technology to deliver +/- 1% accuracy Slimmed down design that fits virtually every frame Three-year warranty IPX7 water resistance rating Weighs only nine grams Backwards compatible with current Precision Drive Side Powermeter Active temperate compensation Over the air feature and firmware upgradability Coin cell battery operated (CR2032) Compatible with 3rd party training apps such as Zwift, TrainerRoad, SYSTM, and more Specifications: Accuracy: +/- 1% Battery Type: CR2032 Coin Cell Battery Life: 800 Hours Waterproof Rating: Ipx7 Cadence Range: 30-170 RPM Power Range: 0-4000 Watts Length: 63.79mm Width: 26.42mm Height: 5.5mm Weight: 9g Operating Temperature: 0 to 50°C Storage Temperature: -40 to 60°C Communication Protocols: ANT+, Bluetooth®

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4iiii Precision 3 Power Meter - Dura Ace 9200 - 175mm
  • £495.00

It's no easy feat to improve upon a power meter that was already one of the lightest, cheapest, and most accurate on the market, but the 4iiii Precision 3 has done just that. Regardless of whether you are contesting Iron Man triathlons, stages of the Tour de France, or town-sign sprints during the weekend club run, the Precision 3 offers truly world-class technology, at an affordable price point. SIMPLY CONNECT As you’d expect, the 4iiii Precision 3 is feature packed and easy to install. It incorporates Bluetooth and ANT+ connectivity, so you can connect it to your choice of bike computer or indoor trainer. Pair it with a compatible device, and it'll work with a plethora of indoor training software, including TrainerRoad and Zwift. Installation of the device is as simple as installing any Shimano left-side crank arm. The power meter arrives pre-attached to the Dura Ace 9200 crank arm, all that's left for you to do is install it on your bike, as you would a regular crank arm. Once installed, follow the set-up instructions via the app, available on iOS and Android. With the app you can also update the firmware, check battery status, and calibrate your power meter. LONGER-LASTING BATTERY In the previous iteration, the Precision already boasted a respectable 120-hour battery life. For the latest version, this has been increased to an industry-leading 800 hours. Operated by a simple to replace CR2032 battery, even the most dedicated cyclists will rarely need to replace the battery. Incredibly, despite this increase in battery life, the casing that houses the device is almost half as thick as previously, making it compatible with even more frames. Handily, LED lights have been added to indicate battery life, connectivity, and calibration status. ACCURATE AND RELIABLE A power meter lives and dies by its accuracy and reliability; after all, there is little point in looking at data from a device that can't be trusted. Over the years, 4iiii have established themselves as a reputable player in the industry, and are well regarded for the accuracy and reliability of their devices. As you'd expect, then, the Precision 3 is no different. Offering accuracy of +/-1%, there are few if any competitors on the market claiming anything better, and you can count on this accuracy to remain reliable. What’s more, with a IPX7 water resistance rating, you can ride into the depths of winter assured that your power meter will survive. Product Features: 800-hours battery life LED lights to indicate – on (green), zero offset (blue), and low battery (red) 3D Strain Gauge technology to deliver +/- 1% accuracy Slimmed down design that fits virtually every frame Three-year warranty IPX7 water resistance rating Weighs only nine grams Backwards compatible with current Precision Drive Side Powermeter Active temperate compensation Over the air feature and firmware upgradability Coin cell battery operated (CR2032) Compatible with 3rd party training apps such as Zwift, TrainerRoad, SYSTM, and more Specifications: Accuracy: +/- 1% Battery Type: CR2032 Coin Cell Battery Life: 800 Hours Waterproof Rating: Ipx7 Cadence Range: 30-170 RPM Power Range: 0-4000 Watts Length: 63.79mm Width: 26.42mm Height: 5.5mm Weight: 9g Operating Temperature: 0 to 50°C Storage Temperature: -40 to 60°C Communication Protocols: ANT+, Bluetooth®

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Shimano Dura-Ace ST-R9270 Hydraulic Disc Brake STI Lever with Flat Mount Caliper - Right/Front
  • £485.49
  • RRP £599.99
  • Saving you £19

Top of the range, high performance Dura-Ace wireless hydraulic Servo Wave disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditions With Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear Wireless connectivity to the front and rear derailleurs for effortless trouble free gear shifts Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold Shifters are lightweight thanks to carbon fibre lever blades, carbon composite bracket body, and a titanium clamp band / fixing bolt Drop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STI Hydraulic brake lever with Servo Wave technology provides excellent stopping power with less effort especially from the hood position Hydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wear Finely tuneable reach adjusters for the levers enable custom fitment for all hands Free stroke adjustment for pad to rotor contact setting Levers use CR1632 batteries which last for approximately 1.5-2 years Ports for use with SD300 E-tube electric cables Kit contains left hand bled ST-R9270 STI, BR-R9270 flat mount brake calliper with pads, hoses and mineral oil (without rotors or adapters)

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