Whether you’re a pro or simply training hard, PRECISION powermeters deliver industry-leading accuracy, highly dependable cadence data, 3D powermeter technology capable of measuring tri-axial strain on your crank arm. Designed to be durable and lightweight, compatible with ANT+ and Bluetooth head units, PRECISION helps you train harder and smarter.PRECISION Ride Ready comes installed on a new Shimano left crank arm (105, Ultegra, or Dura-Ace). These crank arms will fit bottom brackets using the Hollowtech ii interface.Key Features:3D powermeter technology (patent pending) measures tri-axial strain on your crank arm,Accurate, consistent data,Lightweight, compact design,Battery status indicator via 4iiii app,Compatible with ANT+, Bluetooth Smart head units, smartphones, and other 4iiii products,User-friendly app and configurable rider compensation scale factor,Easy setup and maintenance,.Specifications:Weight: 9 grams,Data accuracy: +/- 1% error margin,Battery life: 100+ riding hours on 2032 coin cell battery.
Experience a better bike ride. SRAM Rival eTap AXS features the technology modern riders demand—intuitive wireless shifting, innovative gearing, integrated power measurement, AXS connectivity, and refined hydraulic disc brakes. It’s low on complexity, but rich with features.Power every ride. We’ve taken the reliability, elegance and features of Quarq’s legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever.• Direct mount chainrings in 38T through 46T• Wide chainline crankset for bikes with the widest gravel tires• An elegant integrated design• DUB-PWR spindle-based unit measures left side power to calculate total watts• Proven Quarq reliability and accuracy• Long battery life (400+ hours) to power a season of rides• User replaceable lithium AAA battery• DUB bottom bracket adds durability and simplicity• Waterproof (IPX7 waterproof to 1 meter for 30 minutes)• Lightweight (less than 40g heavier than standard crankset) (BB not included)
Experience a better bike ride. SRAM Rival eTap AXS features the technology modern riders demand—intuitive wireless shifting, innovative gearing, integrated power measurement, AXS connectivity, and refined hydraulic disc brakes. It’s low on complexity, but rich with features.Power every ride. We’ve taken the reliability, elegance and features of Quarq’s legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever.• An elegant integrated design• DUB-PWR spindle-based unit measures left side power to calculate total watts• Proven Quarq reliability and accuracy• Long battery life (400+ hours) to power a season of rides• User replaceable lithium AAA battery• DUB bottom bracket adds durability and simplicity• Waterproof (IPX7 waterproof to 1 meter for 30 minutes)• Lightweight (less than 40g heavier than standard crankset)(BB not included)
Building on what it learned with its Gen 2 Version, Stages has developed its technology even further for this latest Gen 3 model. Installed onto a Shimano Ultegra R8000 non-drive side crank arm, it is individually calibrated to ensure its accuracy. Stages produce power meters that both avid amateurs and professionals at the top of their game can trust. Reliable Readings In All Conditions To ensure consistency of measurement on the Stages G3 Ultegra R8000, Stages Cycling introduced a World-first feature to its power meters. This feature is called “Active temperature Compensation” and it is built in as standard to account for sudden temperature changes, which if not accounted for, would result in false and inaccurate data. Stable Connection Stages have made additional improvements to the Bluetooth and ANT+ transmitters and the accelerometer. This ensures the Stages Cycling Power Meter G3 l Ultegra R8000 provides a stable and powerful connection with your cycle computer is maintained and a faster sampling rate for more up-to-date feedback on your performance. Compatibility: · Compatible with all Shimano Hollowtech II road drivetrains · Frame Compatibility: Most frames · Device Compatibility: ANT+, Bluetooth Smart ready · Software Compatibility: StagesLink, Training Peaks, Strava, Garmin Training Centre and other In The Box: · Power meter · High-quality CR2032 coin cell battery · Product identification card with serial number and ANT+ I.D. · Number user guide
Stages Cycling Power Meter G3 L Ultegra R8000This Power Meter from Stages has been a proven performing time and time again. Used by three TDF winners, it helps ensure you outperform thanks to its accurate readings within +/- 1.5% and is compatible with any Shimano road drivetrain. Increased AccuracyStages have built on what it learned when producing its Gen 2 model, by developing the technology even further for increased accuracy of the readings. This Gen 3 model is assembled within an Ultegra R8000 non-drive side crank arm and is individually calibrated. This ensures it provides an accuracy that can be trusted by avid amateurs and professionals on the World Tour.Reliable Readings In Any WeatherTo ensure the measurements remain consistent in any weather type, Stages introduced a feature that’s never been seen integrated into a power meter before. The feature is “Active Temperature Compensation” and Stages added this technology to account for any sudden temperature changes that you might encounter on your ride. If temperature changes are not accounted for, it can result in false and inaccurate data.Strong ConnectionOther improvements include more powerful Bluetooth and ANT+ transmitters. These improvements ensure the power meter provides a powerful and stable connection with your cycle computer is maintained. Also, thanks to the addition of a more advanced accelerometer, the power meter has a faster sampling rate for more up-to-date feedback on your performance.In The Box: Power MeterHigh-quality CR2032 coin cell batteryLifetime access to Stages Link for power meter management and firmware upgrades.2 months of free access to Stages Link premium training and coaching features.Product Identification Card with Serial Number and ANT+ I.D. Number.User GuideFeatures: Accelerometer-based cadence measurement Wirelessly upgradable firmware LED indicator displays battery level Updated accelerometer and addition of gyroscope Upgraded BLE and ANT+ radios offer a 6X improvement of data transmission strength Battery Life: 200+ hours (coin cell: CR2032) when used as a single-sided meter Power Range (Watts): 0 to 5000 Cadence range (rpm): 10-220 Water Resistance Rating: IPX7 Weight: Only adds 15g to the base crank armCompatibility: Compatible with all Shimano Hollowtech II road drivetrains Frame Compatibility: Most frames Device Compatibility: ANT+, Bluetooth Smart ready Software Compatibility: StagesLink, Training Peaks, Strava, Garmin Training Centre and othersBuy Stages Cycling Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
How do you define success? Whether you are fighting for a Kona slot, spending countless hours on the indoor trainer, or striving for a personal best; one thing we know, success takes time. With an industry-leading 800 hours battery life, +/-1% accuracy and backed by 4iiii’s legendary 3-year warranty the Precision 3 Powermeter will be your trusted training tool for years to come. Features: Industry leading battery with 800 hours of battery life Product status indication LED light – for wake up (green), zero offset (blue) and low battery (red) Patented 3D Strain Gauge technology to deliver +/- 1% accuracy Ultra slim design to fit almost every frame Legendary 3 Year Warranty Waterproof, durable, designed and tested in the Canadian Rockies for the harshest conditions Lightest power meter on the market at only 9g Backwards compatible with current Precision Drive Side Powermeter Active temperate compensation Over the air feature and firmware upgradability Coin cell powered, 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®
Designed for mountain bike (MTB) riders who want to take their training sessions to the next level, this high-quality powermeter comes factory fitted into a Shimano XT M8100 left-sided crank arm. Another highlight is its lightweight crank arm design that is optimised for maximum power-transfer efficiency without sacrificing stiffness. At 5.5mm high, this Precision 3.0 powermeter is compatible with almost every bike frame on the market. In addition, the indicator light will let you know when your power meter is on, performed a successful zero-offset, and is ready for its battery to be changed. With an ultra-precise +/- 1% accuracy and an impressively light 9g weight, this left-sided power meter is all set for helping you reach your performance goals. One final highlight is that it boasts up to 800 hours of battery life from its long-lasting coin cell battery. Precision 3 Whether you are fighting for a Kona slot, spending countless hours on the indoor trainer or striving for a personal best; one thing we know, success takes time. With up to 800 hours of battery life, +/-1% accuracy and weighing in at only 9 grams, the Precision 3Powermeter will be your trusted training tool for years to come. Shimano XT M8100 Crank Arm Shimano XT is the original mountain bike series trusted by generations of mountain bikers around the world. Whatever the trail, whatever you ride, XT is your solution for mountain biking today. Reliable. Superior. Intuitive. XT is the high performance workhorse you can count on. Accuracy in 3D Not everyone has a perfect pedal stroke. 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke. Our patented 3D Strain Gauge design has been 3rd party tested to +/- 1% accuracy providing you with data that you can rely on to help you reach your fullest potential. Up To 800 Hour Battery Life With up to 800 hours of battery life, you won't have to worry about changing your battery for years to come. +/- 1% Accuracy Everyone has a unique pedal stroke. 4iiii's patented 3D strain gauge measures all forces to deliver precision accuracy. Technologies: Accuracy in 3D: Not everyone has the perfect pedal stroke. With +/- 1% accuracy, 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke. Ultra Low Profile: With an ultra low profile design, the PRECISION 3 is compatible with more bike frames than ever before. Indicator Light: At a glance, you can now see when your power meter has turned on, performed a successful Zero-offset, or has a low battery. Although, don’t expect to see that low battery indicator for a while! Waterproof: Based in the foothills of the Canadian Rockies, we were tired of training tools not designed to work in our tough environment. With an IPX7 waterproof rating you can be assured that your power meter can handle the toughest conditions. ANT+ and Bluetooth: Get the same numbers training inside and outside. The PRECISION 3 Powermeter is both ANT+ and BLE compatible so you can use it on your preferred head unit and favorite indoor training app. 3 Year Warranty: A lot can happen in 3 years. You probably won’t need to use it, but it’s reassuring to know that all 4iiii Powermeters are backed by an industry-leading 3-year warranty.
4iiii 105 7000 PRECISION 3.0 PowermeterThis high-quality 4iiii powermeter comes factory installed into a Shimano 105 7000 left-sided crank arm, making it ready for your next road bike training ride. Providing an ultra-precise +/- 1% accuracy with an impressively light 9g weight, it is fully equipped to help you achieve your performance goals and get the best out of every training session. Benefitting from a lightweight crank arm design that is optimised for maximum power-transfer efficiency without sacrificing stiffness, it delivers smooth and consistent rotative performance as you clock up the miles on your road bike.At 5.5mm high, this Precision 3.0 powermeter is compatible with almost every bike frame on the market. In addition, the indicator light will let you know when your power meter is on, performed a successful zero-offset, and is ready for its battery to be changed. With 800 hours of battery life from its long-lasting coin cell battery, the 4iiii Shimano 105 7000 PRECISION 3.0 Powermeter is all set for taking your training up a notch.Shimano 105 7000 Crank ArmThe Shimano 105 7000 Series is designed to empower more riders than ever before to embrace the sport of road cycling. By combining trickle down technology with a greater accessibility, Shimano 105 continues to motivate and inspire more riders to go after greater challenges.Up To 800 Hour Battery LifeWith up to 800 hours of battery life, you won't have to worry about changing your battery for years to come.+/- 1% AccuracyEveryone has a unique pedal stroke. 4iiii's patented 3D strain gauge measures all forces to deliver precision accuracy.9g Weight4iiii has confirmed that it makes the lightest power meter on the market. The brand is committed to helping you get faster, one gram at a time.Features: Accuracy: +/- 1% Battery Life: Up To 800 hours Battery Type: CR2032 Coin Cell Waterproof Rating: IPx7 Cadence Range: 30 - 170 RPM Power Range: 0 - 4,000 W Height: 5.5mm Operating Temperature: 0 To 50 degrees celsius Connectivity: ANT+, Bluetooth Arm Type: Shimano 105 7000 Single or Pair: Single, left-sided arm Weight: 9gTechnologies: Accuracy in 3D: Not everyone has the perfect pedal stroke. With +/- 1% accuracy, 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke. Ultra Low Profile: With an ultra low profile design, the PRECISION 3 is compatible with more bike frames than ever before. Indicator Light: At a glance, you can now see when your power meter has turned on, performed a successful Zero-offset, or has a low battery. Although, don't expect to see that low battery indicator for a while! Waterproof: Based in the foothills of the Canadian Rockies, we were tired of training tools not designed to work in our tough environment. With an IPX7 waterproof rating you can be assured that your power meter can handle the toughest conditions. ANT+ and Bluetooth: Get the same numbers training inside and outside. The PRECISION 3 Powermeter is both ANT+ and BLE compatible so you can use it on your preferred head unit and favorite indoor training app. 3 Year Warranty: A lot can happen in 3 years. You probably won't need to use it, but it's reassuring to know that all 4iiii Powermeters are backed by an industry leading 3-year warranty.Buy 4iiii Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
4iiii XT M8100 PRECISION 3.0 PowermeterThis high-quality powermeter comes factory fitted into a Shimano XT M8100 left-sided crank arm, making it perfect for mountain bike (MTB) riders who want to take their training sessions up a level. With an ultra-precise +/- 1% accuracy and an impressively light 9g weight, this left sided power meter is all set for helping you reach your performance goals. Another highlight is its lightweight crank arm design that is optimised for maximum power-transfer efficiency without sacrificing stiffness. At 5.5mm high, this Precision 3.0 powermeter is compatible with almost every bike frame on the market. In addition, the indicator light will let you know when your power meter is on, performed a successful zero-offset, and is ready for its battery to be changed. One final highlight is that it boasts up to 800 hours of battery life from its long-lasting coin cell battery.Precision 3Whether you are fighting for a Kona slot, spending countless hours on the indoor trainer or striving for a personal best; one thing we know, success takes time. With up to 800 hours of battery life, +/-1% accuracy and weighing in at only 9 grams, the Precision 3Powermeter will be your trusted training tool for years to come.Shimano XT M8100 Crank ArmShimano XT is the original mountain bike series trusted by generations of mountain bikers around the world. Whatever the trail, whatever you ride, XT is your solution for mountain biking today. Reliable. Superior. Intuitive. XT is the high performance workhorse you can count on.Accuracy in 3DNot everyone has a perfect pedal stroke. 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke. Our patented 3D Strain Gauge design has been 3rd party tested to +/- 1% accuracy providing you with data that you can rely on to help you reach your fullest potential.Up To 800 Hour Battery LifeWith up to 800 hours of battery life, you won't have to worry about changing your battery for years to come.+/- 1% AccuracyEveryone has a unique pedal stroke. 4iiii's patented 3D strain gauge measures all forces to deliver precision accuracy.9g Weight4iiii has confirmed that it makes the lightest power meter on the market. The brand is committed to helping you get faster, one gram at a time.Features: Accuracy: +/- 1% Battery Life: Up To 800 hours Battery Type: CR2032 Coin Cell Waterproof Rating: IPx7 Cadence Range: 30 - 170 RPM Power Range: 0 - 4,000 W Height: 5.5mm Operating Temperature: 0 To 50 degrees celsius Connectivity: ANT+, Bluetooth Arm Type: Shimano XT M8100 Single or Pair: Single, left-sided arm Weight: 9gTechnologies: Accuracy in 3D: Not everyone has the perfect pedal stroke. With +/- 1% accuracy, 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke. Ultra Low Profile: With an ultra low profile design, the PRECISION 3 is compatible with more bike frames than ever before. Indicator Light: At a glance, you can now see when your power meter has turned on, performed a successful Zero-offset, or has a low battery. Although, don’t expect to see that low battery indicator for a while! Waterproof: Based in the foothills of the Canadian Rockies, we were tired of training tools not designed to work in our tough environment. With an IPX7 waterproof rating you can be assured that your power meter can handle the toughest conditions. ANT+ and Bluetooth: Get the same numbers training inside and outside. The PRECISION 3 Powermeter is both ANT+ and BLE compatible so you can use it on your preferred head unit and favorite indoor training app. 3 Year Warranty: A lot can happen in 3 years. You probably won’t need to use it, but it’s reassuring to know that all 4iiii Powermeters are backed by an industry leading 3-year warranty.Buy 4iiii Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Stages Cycling Power Meter L (105 R7000)Enabling you to add pedal power and cadence analysis to your bike without having to change your entire chainset, Stages Cycling brings you its highly accurate Power Meter L non-drive-side crank arm. A perfect choice for performance-seeking cyclists, this model is specifically designed for use with Shimano 105 R7000 chainsets, perfectly matching the aesthetics and colour of the original arm. Its advanced strain gauges are accurate to within +/- 1.5% and the arm can connect to compatible bike computers by ANT+ or Bluetooth wireless connection. This means you get instant feedback, so you can train to specific power zones.High-Performance Crank Arm Power Gauge Designed to make sure you get the most out of every ride, this convenient training accessory can be sued on both indoor and outdoor training sessions and is powered by a long-life CR2032 battery. With Tour de France-racing pedigree, it is a proven way to raise your riding to the next level. It can also be used in all weathers due to the IPX7 waterproof rating and Active Temperature Compensation technology.Features: Accuracy: +/- 1.5% accurate in all conditions Compatibility: Specifically for use with Shimano 105 R7000 crankset, Shimano Hollowtech II road bike drivetrains Power Range: 0 - 5000 Watts Cadence Range: 10-220 RPM Water Resistance Rating: IPX7 Battery Life: 200+ hours (coin cell: CR2032) when used as a single-sided meter Connectivity: ANT+, Bluetooth Power Meter Housing: Low profile design, with robust door interface Bottom Bracket Included: No Generation 3 model Single left-hand crank arm only (non-drive side) Active temperature compensation Accelerometer-based cadence measurement Wirelessly upgradable firmware LED indicator displays battery level at start-up (with no need to connect to an app) and confirms successful zero reset Updated accelerometer and addition of gyroscope for improved cadence resolution Upgraded BLE and ANT+ radios offer a 6X improvement of data transmission strength Manufacturer's Part Number: R7000-L Weight: 15g (sensor only, approx.) Technologies:Active Temperature Compensation: 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 conditionsIndividual Meter Calibration: For the most accurate results, Stages Power meters are calibrated individually to ensure a +/- 1.5% accuracy level. Individual calibration means that you can trust the data produced by Stages Cyling's systemBuy Stages Cycling Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Quarq DFOUR DUB Powermeter SpiderThis spider powermeter is developed to help you reach new goals and explore new roads, delivering accuracy, durability, and reliability on every training mile. The DFour DUB is designed specifically for Dura-Ace R9100 chainrings. Train using a Quarq power meter without changing your drivetrain. You are working hard, pushing yourself to new heights in some of the toughest conditions. Ride with confidence knowing that your power meter will not quit when you need it the most.Up To 200 Hours Ride TimeEnjoy up to 200 hours of ride time in any weather condition with its IPX7 waterproof rating and 10k temperature compensation; if harsh climates do not hold you back, then you need a product capable of rising to the occasion. That is exactly what the DFour DUB power meter is made for.MagicZero Automatic CalibrationTrain harder, ride faster and unlock your ultimate potential. The DFour DUB power meter brings simplicity and ease of use to your training. With MagicZero automatic calibration, there is no need to worry about calibrating before you ride; just jump on your bike and go. DFour DUB features Bluetooth low energy and ANT+ wireless data transfer, delivering power output information directly to your cycling computer.Powermeter Spider with DUB TechnologyThe relationship between bottom bracket spindle and bearing is the core of DUB technology. It's where stiffness meets durability. Quarq took it a step beyond conventional thinking and made everything simpler—better integrating the relationship between chainring, crank, spindle and bottom bracket. It's this approach to developing a complete system that equals better drivetrain performance.Please note: Compatible bottom brackets, crank arms, chainrings are sold separately.Features: Use: Road Speed: 11 speed Bolt Circle Diameter (BCD): 110 BCD Bottom Bracket (BB) Compatibility: All SRAM Road DUB BBs (Bottom Brackets are available separately) BB Spindle Interface: DUB Chainring Compatibility: Dura-Ace R9100 chainrings Guard: No Guard Not Included: Bottom bracket, crank arms, chainrings are available separatelyTechnologies: Bluetooth low energy technology and ANT+ wireless data transfer. MagicZero - automatically checks and recalibrates your power meter as you ride - no need to manually calibrate. AxCad -- no cadence magnet required. 10K Temperature Compensation. Battery -- CR2032, 200-hour battery life, change without tools. OmniCal -- swap chainrings without affecting accuracy. 2-year manufacturer's warranty. IPX7 waterproof rating. Accuracy -- within 1.5%, measuring both legs.Manufacturer's Part Numbers: PMQ268002 Black No BB/C'Ring/Arm 110 BCDBuy Quarq Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Stages Cycling G3 Cannondale Si Power MeterFeaturing the tech behind seven Grand Tour wins, this single-sided powermeter is now available for Cannondale's HollowGram Si cranks. Whether you're testing your limits on gravel, flying up mountain passes or going full send on the trails, this model is engineered to help you unlock your true potential as a rider.Active Temperature Compensation (ATC)The 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. ATC is a key reason riders trust data from Stages Power no matter how much the day warms or temperatures plummet as you crest an Alpine peak.Individual Calibration for the Most Reliable ResultsEach Stages Power meter is assembled in Stages' own state-of-the-art facility in Colorado, USA. Here every single unit is calibrated individually to ensure a +/- 1,5% accuracy level - an industry best for non-scientific power meters.Stages Power has carried riders to five Tour de France victories plus wins in the Giro and Vuelta along with many more world and national championships. If you believe racing provides the world's best product proving ground, then Stages Power is proven as one of the world's best power meters.Features: Stages Power L Accuracy: +/- 1.5% Powermeter Type: Single-sided (left side) crankarm powermeter Battery Type: CR2032 coin cell Battery Life: 200+ hours Power Range: 0 - 2500 watts Cadence Range: 20 - 220 rpm Water Resistance Rating: IPX7 Drive Compatibility: ANT+, Bluetooth Smart Ready Software Compatibility: Training Peaks, Strava, Garmin Training Center and others Weight: Only less than 20gr to base crank armTechnologies: - Tool-free battery replacement. - Active temperature compensation. - Accelerometer-based cadence measurement. - Wireless firmware upgrades.Manufacturer's Part Numbers: STACS2LA Black 165mm Left Only STACS2LC Black 170mm Left Only STACS2LD Black 172.5mm Left Only STACS2LE Black 175mm Left OnlyBuy Stages Cycling Components from Chain Reaction Cycles, the World's Largest Online Bike Store.