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.
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.
The perfect companion for indoor and outdoor training, this innovative meter comes housed in a Shimano 105 R7000 crank arm and gives precision readings to within +/-1.5% in all conditions thanks to its IPX7 waterproof rating and Active Temperature Compensation Technology. Suitable for use with all Shimano Hollowtech II road drivetrains, the Stages Shimano 105 Power Meter uses ANT+ and Bluetooth connectivity to send your riding data right to your compatible device, letting you adapt your pedalling accordingly for the best possible performance. With over 200 hours of use from the included cell battery, easy installation and Tour de France-proven prowess, this is the ultimate power meter for the performance-focused rider.
FSA Powerbox SC POD Left Crankarm Power meterThe Powerbox SC POD Left Crankarm Power meter is a highly accurate power meter housed in a left-side crank arm that can be used with any chainset. Compatible with 386EVO bottom brackets, this power meter offers 1% accuracy and provides a left-right-hand side power calculation to total power measurement. It is designed to work with Bluetooth BLE5.0, it supports Zwift and is powered by a CR2450 cell battery.Features: Material: Cold forged AL6061/T6 aluminium crank Power meter left hand arm can be used with any chainset 1% accuracy and virtual L/R balance BLE/ANT compatible IPX7 waterproof Automatic temperature compensation Strain gauges made in Japan High accuracy resolution Bottom Bracket Type: 386EVOManufacturer's Part Numbers: 340-0108003090Buy FSA Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The 4iiii Precision 3 Power Meter has a number of positive things going for it: it boasts an industry-leading 800-hour battery life, an industry-leading +/-1% accuracy, and an industry-leading three-year warranty. You may have gathered that this is a power meter that is industry leading, in many respects. If you’re looking to take your training to the next level, then a power meter is the way to do that. 4iiii have been perfecting their craft in producing these devices for a number of years and already produce one of the cheapest, lightest, and most accurate devices on the market, with the Precision 3 the Canadian-based company have improved on all three points. Simply Connect And Go The 4iiii Precision 3 is chocked full of cutting-edge tech but is still simple to install. As you’d imagine, it’s Bluetooth and ANT+ enabled, so it’ll pair easily with your choice of bike computer or indoor trainer. Whether you’re road racing or smashing intervals indoors, it’s the perfect partner. From your device arriving pre-installed on a brand-new crank, to getting out for a ride is simple. Installation is the same as installing any Shimano Ultegra left-side crank arm. Once you’ve installed the crank arm, it’s merely a case of pairing with the app/your computer and that’s it: the world of watts, metrics, and marginal gains is your oyster! Within the app you can also update the firmware, check battery status, and calibrate your power meter. Reliable And Accurate Power Data It’s all well and good carting about a piece of tech that spits out fancy numbers but if the numbers aren’t accurate then there’s little point to doing so. Fear not, with the 4iiii Precision 3 power meter, you can rest assured the data you get is both accurate and reliable to +/-1%. With many years in the market, 4iiii are firmly established as reputable producers of cycling tech. So confident in their products, the brand back them all with a three-year warranty. Born in the Canadian Rockies, this isn’t a delicate piece of equipment. It’s rated to IPX7 for water resistance, so you can confidently ride into the wind and rain. Product Features: 800 hours of battery life Product status indication LED light – for wake up (green), zero offset (blue) and low battery (red) Uses patented 3D strain-gauge technology to deliver +/- 1% accuracy Slim design that fits almost every frame Three-year warranty Waterproof Rating: IPX7 Weight (in addition to crank arm): 9g Backwards compatible with current Precision Drive Side Power Meter Active temperate compensation Feature and firmware upgradability via the app Coin-cell powered by a CR2032 battery Compatible with third party training apps such as Zwift, TrainerRoad, SYSTM, and more Specifications: Cadence Range: 30-170 RPM Power Range: 0-4000 Watts Length: 63.79mm Width: 26.42mm Height: 5.5mm Operating Temperature: 0 to 50°C Storage Temperature: -40 to 60°C Communication Protocols: ANT+, Bluetooth®
4iiii Precision XT M8100 Left Arm PowermeterSpecifically designed for road cycling and gravel adventure riding, this powermeter is engineered for reliable results, whether you're preparing for your next event or want to beat personal performance goals. Coming housed within a Shimano XT M8100 left-sided crankarm, it offers straightforward installation when pairing it with your crankset. 4iiii has also equipped this model with technologies including 3D Power Measurement, Dual Channel ANT+ and Bluetooth Smart wireless connectivity as well as an industry-leading +/- 1% accuracy. This makes it a perfect choice for a wide range of performance-focused riders who want to improve their game and boost their training routine.Used to pace attacks up the Alpe D'Huez in the Tour de France and to hammer on the Queen K during the Ironman World Championships, the Precision Powermeter delivers industry-leading accuracy and reliability when you need it most. Through 4iiii's patented 3D Strain Gauge technology, you can be assured that the data you depend on will help lead you to your own Yellow Jersey.Packaged into a durable lightweight design and compatible with ANT+ and Bluetooth Smart headunits, Precision will help you train harder and smarter.A Ride Ready Precision includes and comes preinstalled on a brand-new Shimano XT M8100 left-sided crank arm. This crank arm will fit bottom brackets using the Hollowtech II interface.Features: Use: Mountain Bike (MTB) Crankset Compatibility: Shimano XT M8100 Accuracy: +/- 1% Connectivity: Dual Channel ANT+ and Bluetooth Smart Power Range: 0-4000W Cadence Range: 30-150RPM Communication Protocols: ANT+, Bluetooth Operating Temperature: 0 to 50°C (32-122°F) Storage Temperature: -20 to 50°C (4-122°F) Battery Type: CR2032 lithium ion coin cell Battery Life: 100+ hours Waterproof Rating: IPX7, IPX5 Length: 37.7mm (1.5in) Width: 27.6mm (1.1in) Depth: 7.5mm (0.3in) Single or Pair: Single left arm powermeter only Module Weight: 9g (0.3oz)Technologies: 3D Power Measurement: When you put force through your pedals or crank, it doesn't just bend the crank - it twists and flexes in all 3 dimensions. 4iiii's patented 3D power measurement system measures this multidimensional strain, so you can be confident that your unique pedal stroke is still measured accurately no matter your riding conditions. Industry Leading Accuracy: 4iiii's +/- 1% accuracy isn't just a claim, it's been third party tested and validated by leading scientists and the Locomotion Lab at the University of Colorado. You can plan your training, pacing, and racing with confidence knowing that your data is always going to be consistent. Don't limit your potential with unreliable data. Want to learn more? Read the whole whitepaper! Dual Channel ANT+ and Bluetooth Smart: 4iiii Powermeters communicate their measurements over both the widely-used ANT+ and Bluetooth Smart radio standards, letting you read and record your power numbers on an enormous catalog of headunits, sportswatches, smartphones, and computers. Communication Compatibility: 4iiii Precision power meters use both the ANT+ PWR and Bluetooth Smart Cycling Power Service standards, which makes them compatible with nearly every headunit, smartphone, or computer you wish to connect to. Check your recording device documentation for ANT+ PWR or Bluetooth Smart (also called BLE, BTLE, or BT4.0) Cycling Power Service capability. Indoor Training: If the weather or climate make riding outdoors tough, your 4iiii Precision powermeter can be used with all popular indoor-training apps, such as Zwift, TrainerRoad, TheSufferFest, Rouvy, and more. Simply use your favourite app's connection procedure over ANT+ or Bluetooth Smart, put your bike on a trainer, and get riding! 3 Year Manufacturer's Warranty: 4iiii Powermeters are waterproof, durable, and designed to be accurate and precise even in the harshest conditions. Because of this, 4iiii are happy to offer an industry-leading 3-year warranty. Ridden through rain storms at Strade Bianche, mud filled cross country mountain bike races, and even tested amidst the salt spray of the ocean on Oracle Team USA's America's Cup competitors, you can be assured that your 4iiii Powermeter will be as tough as you are and is backed with an industry-leading 3-year warranty. All 4iiii Powermeters are IPX7-rated for water immersion up to one meter and backed with an industry-leading 3-year warranty. In The Box: Once your ride-ready Precision powermeter arrives, it just needs to be installed on your bike using the standard Shimano crank installation process. Connect a headunit or computer, and you can start riding with power!Manufacturer's Part Numbers: PML100-S5B00A Black 170mm PML100-S5D00A Black 175mmBuy 4iiii 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.
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 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.
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.
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.