Precision in name and in execution, this superb unit is the most accurate way to keep on top of your riding progress. This left-arm model is compatible with Shimano Ultegra FC-R8000 cranksets and provides instant cadence and power data right to your onboard computer or smartphone via ANT+ and Bluetooth. Weighing just 8g, it delivers output readings to within +/-1% accuracy, allowing for the correct adjustments to be made to keep you riding at peak performance. IPX7 waterproof rated and equipped with 100+ hours of battery life, the Precision is a stunning training aid for the performance-focused rider.
Making the most of its ability to measure tri-axial strain, this innovative crank arm gives precise readings to within +/-1% to keep you committed to shaving off the seconds. Bluetooth and ANT+ compatible, it will relay your riding data to your compatible mobile device or onboard computer, allowing you to analyse and adapt your ride at any given time. With over 100 hours of usage from the included battery, this easy-to-install 4iiii Power Meter 105 will keep you riding as efficiently and effectively as possible, ride-after-ride. If the weather or climate makes riding outdoors tough, this item can be used with all popular indoor-training apps, such as Zwift, TrainerRoad, Wahoo SYSTM, 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. Please Note: This is the non-drive side crank arm only, it is designed to be used along with your existing drive side crank arm (chainring side).
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.
As the name suggests, this excellent device is the most precise way to keep on top of your riding outputs. This left-arm model is compatible with Shimano Dura-Ace FC-R9100 cranksets, delivering real-time cadence and power data straight to your onboard computer or smartphone via ANT+ and Bluetooth. Weighing only 8g, it gives output readings to within +/-1% accuracy, letting you make the appropriate adjustments in an instant. IPX7 waterproof rated and equipped with 100+ hours of battery life, the 4iiii Dura-Ace Power Meter is an excellent way to keep yourself riding at your very best. Please note: Crankarm only, no accessories included.
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®
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®
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®
Improve training performance with a 4iiii Precision 2.0 3D 105 R7000 Power Meter. By employing 3D power meter technology and a triaxle strain gauge on the crank arm, this 4iiii power meter measures the amount of power you're putting through the pedals to +/-1% accuracy, so you can ride harder, faster and further. Fortunately, this crank-based power meter is also incredibly easy to fit. Simply slotting on just like a regular Shimano 105 crank arm, this 4iiii power meter is an ideal choice for home mechanics. Similarly, being both Bluetooth and ANT+ compatible, this 4iiii power meter can be used with almost any bike computer and would make a great addition to any existing setup. Weighing just 9 grams, this 4iiii power meter is a perfect match for any 105-equipped performance road bike. Powered by a simple coin-cell battery and accompanied by a dedicated smartphone companion app, this 4iiii power meter is incredibly easy to set up, use and maintain. 3D power meter technology measures tri-axial strain on your crank arm Accurate to +/- 1% Weighs just 9 grams 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 100+ riding hours on 2032 coin cell battery Easy setup and maintenance
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®
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®
Improve training performance with a 4iiii Precision 2.0 3D 105 R7000 Power Meter. By employing 3D power meter technology and a triaxle strain gauge on the crank arm, this 4iiii power meter measures the amount of power you're putting through the pedals to +/-1% accuracy, so you can ride harder, faster and further. Fortunately, this crank-based power meter is also incredibly easy to fit. Simply slotting on just like a regular Shimano 105 crank arm, this 4iiii power meter is an ideal choice for home mechanics. Similarly, being both Bluetooth and ANT+ compatible, this 4iiii power meter can be used with almost any bike computer and would make a great addition to any existing setup. Weighing just 9 grams, this 4iiii power meter is a perfect match for any 105-equipped performance road bike. Powered by a simple coin-cell battery and accompanied by a dedicated smartphone companion app, this 4iiii power meter is incredibly easy to set up, use and maintain. 3D power meter technology measures tri-axial strain on your crank arm Accurate to +/- 1% Weighs just 9 grams 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 100+ riding hours on 2032 coin cell battery Easy setup and maintenance
Precision Power Meter - 105 R7000 Black 175mm