Whether you're training for an event or wanting to beat your previous goals, the Precision Pro is the ultimate component for the job. This dual-sided model (comes with both crank arms, left crank arm has strain gauges built-in) provides readings with an accuracy of within +/- 1% and can be used with your Shimano Ultegra R8000 drivetrain. 4iiii has built on what it learned when producing their left-side model (exceptional accuracy, lightweight design, ANT+ and Bluetooth compatibility, 3D power meter technology), by developing the technology even further for increased precision of the readings. This model is assembled within Shimano's stunning Ultegra R8000 crankset and measures the individual power output of each leg. ANT+ and Bluetooth connectivity allow you to wirelessly connect to it using your smartphone and a wide variety of devices. Accurate and consistent, its smartphone app also gives you access to the rider compensation scale and other useful features such as a battery status indicator. The app also allows you to enjoy over-the-air upgrade capabilities such as adding new features and updates. What's most impressive is its battery life lasts 100+ hours on a 2032 coin cell battery, so you'll benefit from precise and reliable data for longer than ever before. Lightweight and compact, this is a perfect choice of upgrade for riders who want to take their road cycling to the next level.
This preload bolt is a direct replacement for the original one that came with your Shimano crankset. It comes equipped with a tough 6061 aluminium build to prevent any axle crushing or ovality, while its longer thread prevents pull out. Another highlight is its smaller flange diameter, which ensures that the arm clamps the axle and is not restricted by the cap. This is a stronger replacement than the genuine Shimano bolt which comes as standard in your crankset. Compatibility: Compatible with most Shimano Hollowtech II cranksets including Shimano Dura Ace, Ultegra, 105, XT, SLX and DEORE. XTR - M9XX Series / M9000 Series XT - M8XXX Series / M7XX Series SLX - M7XXX Series / M6XX Series Deore - M61XX Series, M6XX Series, M5XX Series Saint - M8XX Series ZEE - M6XX Series EBike - M8000 Manufacturer's Part Number: BXPLB-BLACK
Many top features are packed into the Centaur crankset. The four-arm design allows for independent bolt circles, offering greater stiffness and structural integrity, and also provides additional versatility, as a single crankset is compatible with both standard compact and semi-compact chainrings. Add these features to the first aluminium crankset with an ULTRA-TORQUE axle and the result is a component that is very similar to the top-of-the range part.Key Features: Four arm design,Two chainring combinations: 52/36 and 50/34,One single crank for both chainring combinations,Optimized inner surface on both cranks,Ultra-torque™ axle,Chainring inner design optimized per each combination,Three crank lengths available: 170, 172,5 and 175 mm,Campagnolo ultra-torque bb cups required .
Campagnolo is pleased to introduce the latest addition to its line-up of finely made mechanical groupsets and this newest entry goes by the name of CENTAUR. While attentive fans of the Italian brand are sure to note that this is not a new name but rather one that has graced the catalog in the past. The newest version takes a huge leap forward and represents even greater value and performance than any preceding version ever made.The new Centaur Chainset features the same four-arm spider as seen on Campagnolo's top end "Super Record" model. The Chainset has the extra strength where it's most needed, ensuring excellent rigidity for efficient gear shifts, sprinting, and climbing. The 4 arm spider design makes for one single crankarm for all chainring options thanks to its unified bolt pattern which allows for all chainring standards 50/34 and 52-36 to be built upon the same chainset. Changing between compact and standard with the Centaur chainset is as easy as changing 8 bolts and two chainringsThe chain rings have a special anti-friction coating to encourage smooth chain operation. The chain rings also feature Campagnolo's "MPS" technology, which enables quick and accurate shifts no matter how hard your pushing and in all weather conditions. Also, thanks to the use of the "Ultra Torque" bottom bracket system, you'll enjoy consistent, rigid performance and optimised power transfer.If you want a race ready crankset at a price that wont break the bank then this is the perfect choice!11-Speed designMaterial: Aluminium (crank arms/chainrings), steel (integrated axle)Ultra torque systemBB Cups not includedChainring range: 50/34T & 52/36TWeight: 875g (Approx - 170mm crank without BB)
It's also very versatile, as if you want to change from a 50/34t to a 53/36t or vice-versa, there's no need to change the entire crankset as the spider is compatible with either chainring combination. Smooth Performance The Centaur's chainrings have a special anti-friction coating to encourage smooth chain operation. The chainrings also feature Campagnolo's "MPS™" technology, which enables quick and accurate shifts no matter how hard your pushing and in all weather conditions. Also, thanks to the use of the "Ultra Torque™" bottom bracket system, you'll enjoy consistent, rigid performance and optimised power transfer. Technologies: MPS™ (Micro Precision Shifting System): Optimised design of the up-shift and down-shift zones and of the profile of the teeth – enables fast and precise shifting in all types of conditions. 8 chain upshifting areas and 2 chain downshifting areas result in faster and more precise shifting, even under stress. Ultra Torque System™: Six years after its introduction, this system is still considered the best performing crankset spindle in terms of stiffness, low weight and efficiency of power transmission. Campagnolo found a way to permanently conjoin the semi-axles of the bottom bracket to the respective crankset arms. This redesign made it possible to considerably reduce the lateral dimensions at the axle level and prevent annoying contact with the ankles when turning the pedals. Furthermore, despite the narrow side profile, Campagnolo has been able to position the bearings outside the bottom bracket shell, resulting in greater axle rigidity from the increased axle diameter.
Campagnolo Centaur Ultra Torque 2x11 Speed ChainsetThe Campagnolo Centaur Ultra Torque chainset brings top-end features and technologies to the masses. Featuring the same four-arm spider as seen on Campagnolo's "Super Record" model, the Centaur has the extra strength where it's most needed, ensuring excellent rigidity for efficient gear shifts, sprinting, and climbing. It's also very versatile, as if you want to change from a 50/34t to a 53/36t or vice-versa, there's no need to change the entyre chainset as the spider is compatible with either chainring combination.Smooth PerformanceThe Centaur's chainrings have a special anti-friction coating to encourage smooth chain operation. The chainrings also feature Campagnolo's "MPS" technology, which enables quick and accurate shifts no matter how hard your pushing and in all weather conditions. Also, thanks to the use of the "Ultra Torque" bottom bracket system, you'll enjoy consistent, rigid performance and optimised power transfer.Features:Material: Aluminium (crank arms/chainrings), Steel (integrated axle)Speed: 2x11Bolt Circle: 112/145mmBottom bracket cups not includedRecommended Chain: Campagnolo 11-speedAxle Profile: Ultra-Torque - integrated axleWeight: Approx. 875g (170mm crank arm length without BB cups)Technologies: MPS (Micro Precision Shifting System): Optimised design of the up-shift and down-shift zones and of the profile of the teeth - enables fast and precise shifting in all types of conditions. 8 chain upshifting areas and 2 chain downshifting areas result in faster and more precise shifting, even under stress. Ultra Torque System: Six years after its introduction, this system is still considered the best performing chainset spindle in terms of stiffness, low weight and efficiency of power transmission. Campagnolo found a way to permanently conjoin the semi-axles of the bottom bracket to the respective chainset arms. This redesign made it possible to considerably reduce the lateral dimensions at the axle level and prevent annoying contact with the ankles when turning the pedals. Furthermore, despite the narrow side profile, Campagnolo has been able to position the bearings outside the bottom bracket shell, resulting in greater axle rigidity from the increased axle diameter.Buy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Centaur Ultra Torque 2x11 Speed ChainsetThe Campagnolo Centaur Ultra Torque chainset brings top-end features and technologies to the masses. Featuring the same four-arm spider as seen on Campagnolo's "Super Record" model, the Centaur has the extra strength where it's most needed, ensuring excellent rigidity for efficient gear shifts, sprinting, and climbing. It's also very versatile, as if you want to change from a 50/34t to a 53/36t or vice-versa, there's no need to change the entyre chainset as the spider is compatible with either chainring combination.Smooth PerformanceThe Centaur's chainrings have a special anti-friction coating to encourage smooth chain operation. The chainrings also feature Campagnolo's "MPS" technology, which enables quick and accurate shifts no matter how hard your pushing and in all weather conditions. Also, thanks to the use of the "Ultra Torque" bottom bracket system, you'll enjoy consistent, rigid performance and optimised power transfer.Features:Material: Aluminium (crank arms/chainrings), Steel (integrated axle)Speed: 2x11Bolt Circle: 112/145mmBottom bracket cups not includedRecommended Chain: Campagnolo 11-speedAxle Profile: Ultra-Torque - integrated axleWeight: Approx. 875g (170mm crank arm length without BB cups)Technologies: MPS (Micro Precision Shifting System): Optimised design of the up-shift and down-shift zones and of the profile of the teeth - enables fast and precise shifting in all types of conditions. 8 chain upshifting areas and 2 chain downshifting areas result in faster and more precise shifting, even under stress. Ultra Torque System: Six years after its introduction, this system is still considered the best performing chainset spindle in terms of stiffness, low weight and efficiency of power transmission. Campagnolo found a way to permanently conjoin the semi-axles of the bottom bracket to the respective chainset arms. This redesign made it possible to considerably reduce the lateral dimensions at the axle level and prevent annoying contact with the ankles when turning the pedals. Furthermore, despite the narrow side profile, Campagnolo has been able to position the bearings outside the bottom bracket shell, resulting in greater axle rigidity from the increased axle diameter.Buy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Centaur Ultra Torque 2x11 Speed ChainsetThe Campagnolo Centaur Ultra Torque chainset brings top-end features and technologies to the masses. Featuring the same four-arm spider as seen on Campagnolo's "Super Record" model, the Centaur has the extra strength where it's most needed, ensuring excellent rigidity for efficient gear shifts, sprinting, and climbing. It's also very versatile, as if you want to change from a 50/34t to a 53/36t or vice-versa, there's no need to change the entyre chainset as the spider is compatible with either chainring combination.Smooth PerformanceThe Centaur's chainrings have a special anti-friction coating to encourage smooth chain operation. The chainrings also feature Campagnolo's "MPS" technology, which enables quick and accurate shifts no matter how hard your pushing and in all weather conditions. Also, thanks to the use of the "Ultra Torque" bottom bracket system, you'll enjoy consistent, rigid performance and optimised power transfer.Features:Material: Aluminium (crank arms/chainrings), Steel (integrated axle)Speed: 2x11Bolt Circle: 112/145mmBottom bracket cups not includedRecommended Chain: Campagnolo 11-speedAxle Profile: Ultra-Torque - integrated axleWeight: Approx. 875g (170mm crank arm length without BB cups)Technologies: MPS (Micro Precision Shifting System): Optimised design of the up-shift and down-shift zones and of the profile of the teeth - enables fast and precise shifting in all types of conditions. 8 chain upshifting areas and 2 chain downshifting areas result in faster and more precise shifting, even under stress. Ultra Torque System: Six years after its introduction, this system is still considered the best performing chainset spindle in terms of stiffness, low weight and efficiency of power transmission. Campagnolo found a way to permanently conjoin the semi-axles of the bottom bracket to the respective chainset arms. This redesign made it possible to considerably reduce the lateral dimensions at the axle level and prevent annoying contact with the ankles when turning the pedals. Furthermore, despite the narrow side profile, Campagnolo has been able to position the bearings outside the bottom bracket shell, resulting in greater axle rigidity from the increased axle diameter.Buy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Chorus 12x Chainsets New 12x Chorus Ultra-Torque chainset for use with the disc or rim brake groupset. The new Chorus chainset is a true concentrate of technology and versatility. Technically advanced thanks to unidirectional construction technology in carbon fibre, it is directly moulded without any surface coating and has an Ultra-Torque steel axle like the Record chainset. The new 12x cranks are more versatile thanks to the new bolt pcd of 123mm, giving it an extremely solid structure, also ensuring a wider variety of uses. The new smaller bolt circle on the Chorus chainset makes it compatible with 36/52, 34/50 and the brand new 32/48 ratio chainrings. Available in 170mm, 172.5mm and 175mm crank lengths. Technologies: Ultra-Torque axle: In steel Features and Benefits: The Q Factor remains the same (145.5): The widths and biodynamics of the stroke are the same. Unidirectional carbon fibre cranks, steel axle and aluminium chainrings: Good stiffness and optimum power transmission. Symmetrical teeth on the internal chainring: Fluid, precise transmission, even with extreme cross-chaining. Optimised design for any chainring combination: Maximum performance, whatever the course style. Double Fixing: Assembly of the large chainring on to the crank is secured by a ring of 123mm bolts, while the inner chainring is attached to the outer by way of 96mm pcd bolts. Surface treatment of the chainrings for longer life Weight: 718g (172.5 34/50)
Campagnolo Chorus 12 Speed Ultra Torque ChainsetFeaturing high-quality carbon fibre crank arms, this 12 speed chainset offers excellent stiffness, durability and low weight performance for the demands of road cycling. Thanks to this model's carbon fibre build, it delivers a smooth and responsive pedal stroke without adding any unnecessary excess grams to your ride. Campagnolo has also equipped this model with a robust steel Ultra Torque axle and two aluminium chainrings for fantastic strength and reliability, wherever your next road journey takes you. Suitable for use with disc or rim brake groupsets, this chainset's chainrings also benefit from a special surface treatment for increased longevity.Carbon Fibre 12 Speed Road ChainsetThe updated Chorus chainset is a true concentrate of technology and versatility. Technically advanced thanks to unidirectional construction technology in carbon fibre, it is directly moulded without any surface coating and has an Ultra-Torque steel axle like the Record chainset. The revised 12x cranks are more versatile thanks to the bolt PCD of 123mm, giving it an extremely solid structure, also ensuring a wider variety of uses. The smaller bolt circle on the Chorus chainset makes it compatible with 36/52, 34/50 and the brand new 32/48 ratio chainrings (options available to select from the menu).Features: Crank Arm Material: Carbon Fibre Chainrings Material: Aluminium Axle Material: Steel Ultra Torque axle Use: Road Speed: 12 Speed Q Factor: 145.5mm Bolt: 4-bolt Brake Compatibility: For use with the disc or rim brake groupsets Weight: 718g (172.5mm, 34/50T Option)Technologies: The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Unidirectional carbon fibre cranks, steel axle and aluminium chainrings: Good stiffness and optimum power transmission. Symmetrical teeth on the internal chainring: Fluid, precise transmission, even with extreme cross-chaining.The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Optimised design for any chainring combination: Maximum performance, whatever the course style. Double Fixing: Assembly of the large chainring onto the crank is secured by a ring of 123mm bolts, while the inner chainring is attached to the outer by way of 96mm PCD bolts. Surface treatment of the chainrings for longer life. 12x Chorus Ultra-Torque chainset for use with the disc or rim brake groupset.Manufacturer's Part Numbers: CPB820A Black Carbon 170mm 32/48T CPB820B Black Carbon 170mm 34/50T CPB820C Black Carbon 170mm 36/52T CPB821A Black Carbon 172.5mm 32/48T CPB821B Black Carbon 172.5mm 34/50T CPB821C Black Carbon 172.5mm 36/52T CPB822A Black Carbon 175mm 32/48T CPB822B Black Carbon 175mm 34/50T CPB822C Black Carbon 175mm 36/52TBuy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Chorus 12 Speed Ultra Torque ChainsetFeaturing high-quality carbon fibre crank arms, this 12 speed chainset offers excellent stiffness, durability and low weight performance for the demands of road cycling. Thanks to this model's carbon fibre build, it delivers a smooth and responsive pedal stroke without adding any unnecessary excess grams to your ride. Campagnolo has also equipped this model with a robust steel Ultra Torque axle and two aluminium chainrings for fantastic strength and reliability, wherever your next road journey takes you. Suitable for use with disc or rim brake groupsets, this chainset's chainrings also benefit from a special surface treatment for increased longevity.Carbon Fibre 12 Speed Road ChainsetThe updated Chorus chainset is a true concentrate of technology and versatility. Technically advanced thanks to unidirectional construction technology in carbon fibre, it is directly moulded without any surface coating and has an Ultra-Torque steel axle like the Record chainset. The revised 12x cranks are more versatile thanks to the bolt PCD of 123mm, giving it an extremely solid structure, also ensuring a wider variety of uses. The smaller bolt circle on the Chorus chainset makes it compatible with 36/52, 34/50 and the brand new 32/48 ratio chainrings (options available to select from the menu).Features: Crank Arm Material: Carbon Fibre Chainrings Material: Aluminium Axle Material: Steel Ultra Torque axle Use: Road Speed: 12 Speed Q Factor: 145.5mm Bolt: 4-bolt Brake Compatibility: For use with the disc or rim brake groupsets Weight: 718g (172.5mm, 34/50T Option)Technologies: The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Unidirectional carbon fibre cranks, steel axle and aluminium chainrings: Good stiffness and optimum power transmission. Symmetrical teeth on the internal chainring: Fluid, precise transmission, even with extreme cross-chaining.The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Optimised design for any chainring combination: Maximum performance, whatever the course style. Double Fixing: Assembly of the large chainring onto the crank is secured by a ring of 123mm bolts, while the inner chainring is attached to the outer by way of 96mm PCD bolts. Surface treatment of the chainrings for longer life. 12x Chorus Ultra-Torque chainset for use with the disc or rim brake groupset.Manufacturer's Part Numbers: CPB820A Black Carbon 170mm 32/48T CPB820B Black Carbon 170mm 34/50T CPB820C Black Carbon 170mm 36/52T CPB821A Black Carbon 172.5mm 32/48T CPB821B Black Carbon 172.5mm 34/50T CPB821C Black Carbon 172.5mm 36/52T CPB822A Black Carbon 175mm 32/48T CPB822B Black Carbon 175mm 34/50T CPB822C Black Carbon 175mm 36/52TBuy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Chorus 12 Speed Ultra Torque ChainsetFeaturing high-quality carbon fibre crank arms, this 12 speed chainset offers excellent stiffness, durability and low weight performance for the demands of road cycling. Thanks to this model's carbon fibre build, it delivers a smooth and responsive pedal stroke without adding any unnecessary excess grams to your ride. Campagnolo has also equipped this model with a robust steel Ultra Torque axle and two aluminium chainrings for fantastic strength and reliability, wherever your next road journey takes you. Suitable for use with disc or rim brake groupsets, this chainset's chainrings also benefit from a special surface treatment for increased longevity.Carbon Fibre 12 Speed Road ChainsetThe updated Chorus chainset is a true concentrate of technology and versatility. Technically advanced thanks to unidirectional construction technology in carbon fibre, it is directly moulded without any surface coating and has an Ultra-Torque steel axle like the Record chainset. The revised 12x cranks are more versatile thanks to the bolt PCD of 123mm, giving it an extremely solid structure, also ensuring a wider variety of uses. The smaller bolt circle on the Chorus chainset makes it compatible with 36/52, 34/50 and the brand new 32/48 ratio chainrings (options available to select from the menu).Features: Crank Arm Material: Carbon Fibre Chainrings Material: Aluminium Axle Material: Steel Ultra Torque axle Use: Road Speed: 12 Speed Q Factor: 145.5mm Bolt: 4-bolt Brake Compatibility: For use with the disc or rim brake groupsets Weight: 718g (172.5mm, 34/50T Option)Technologies: The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Unidirectional carbon fibre cranks, steel axle and aluminium chainrings: Good stiffness and optimum power transmission. Symmetrical teeth on the internal chainring: Fluid, precise transmission, even with extreme cross-chaining.The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Optimised design for any chainring combination: Maximum performance, whatever the course style. Double Fixing: Assembly of the large chainring onto the crank is secured by a ring of 123mm bolts, while the inner chainring is attached to the outer by way of 96mm PCD bolts. Surface treatment of the chainrings for longer life. 12x Chorus Ultra-Torque chainset for use with the disc or rim brake groupset.Manufacturer's Part Numbers: CPB820A Black Carbon 170mm 32/48T CPB820B Black Carbon 170mm 34/50T CPB820C Black Carbon 170mm 36/52T CPB821A Black Carbon 172.5mm 32/48T CPB821B Black Carbon 172.5mm 34/50T CPB821C Black Carbon 172.5mm 36/52T CPB822A Black Carbon 175mm 32/48T CPB822B Black Carbon 175mm 34/50T CPB822C Black Carbon 175mm 36/52TBuy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.