Every innovation in Quarq’s next-generation DZero platform is channeled into DFour. It embodies 10 years of Quarq technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and compatibility with BB30 bottom brackets. Quarq power meters use their patented direct-force technology to precisely measure your physical performance throughout your ride. Their meter is located in the crankset, the heart of the bicycle, and because it gathers data from both legs, and it's located at the precise point where muscle energy is converted to forward movement, the power meter spider is the most accurate place to gather power data. 10K Temperature Compensation Eliminates variables caused by heat and cold to provide an unwavering record of your performance through all conditions. Built to Last An IPX7 waterproof rating, an easy-to replace CR2032 battery, a 2-year warranty, free firmware updates and acclaimed worldwide support. Easy to Use Manual and automatic zeroing make Quarq power meters truly set and forget. The chainrings are replaceable should your bike, discipline or ability change. Qalvin BLE with Bluetooth For iOS and Android. With any phone you can set zero offset, check battery, run diagnostics and update firmware. Free. Other Features DFour also features OmniCal (change chainrings without affecting accuracy) and AxCad (accelerometer cadence – no magnet).
This superb model is an ideal replacement for your old or worn-out crankset spider. Genuine Hope replacement part.
Compatible with Shimano and SRAM 10 and 11-Speed groupsets, this durable and ultra-precise power meter crankset records your power output thanks to its virtual left and right balance while also being compatible with Zwift training cycling software. The Powerbox SC POD power meter is the next step in FSA’s power meter offering. Featuring virtual L/R balance to estimate total power more accurately it is Zwift compatible via BLE5.0 and has a 450H battery life (it uses a single CR2450 battery). With a precision of more than 99%, this quality power meter gives you accurate power readings. Nowadays, power meter cranks represent a fundamental tool that will help riders track their data directly during training sessions and to be increasingly more competitive on race day. Manufacturer's Part Number: 328-0016743090
Whether you're training or trying to beat your personal best, this crankarm power meter is developed to help you achieve your goals. It features a single-sided power meter that's integrated into a non-drive-side Shimano GRX RX-810 crank arm. Delivering ± 1.5% accuracy in all conditions, this model allows you to benefit from its precise readings and its active temperature compensation. Coming equipped with 200+ hours of battery life, this version is more than capable of handling long-distance training sessions as you ride across the mixed terrains on your bike. One final highlight is it only adds a mere 15g of weight to your crankset, so you can enjoy its performance benefits without weighing down your ride. Additional features: ± 1.5% accuracy in all conditions Active temperature compensation Accelerometer based cadence measurement Wirelessly upgradable firmware LED indicator displays battery level at start up (with no need for 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 Water resistance rating: IPX7 This Shimano GRX RX810 Stages Power meter is compatible with all Shimano GRX cranksets. Frame Compatibility: Most frames, see fit guide in our Support section Device Compatibility: ANT+, Bluetooth Smart Ready Software Compatibility: Stages Link, Training Peaks, Strava, Garmin Training Center and others Technologies: Tour Proven. Stages Power has carried riders to three consecutive Tour de France victories, plus many more world and national championships. If you believe racing provides the world’s best product proving ground, then Stages Power is proven as the world’s best power meter. Active Temperature Compensation as standard equipment. 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. Individual 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 our system.
Providing optimum leverage from their sturdy, tubular design, each arm features a one-piece spindle/ sprocket boss for accurate and efficient sprocket alignment.
Built on to a Shimano's top-of-the-line Dura-Ace R9100 non-drive side crank arm, the Stages Gen 2 sensor 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, Stages 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.
These superb cranks are built for the biggest DH hits as they deliver phenomenal strength and pedal stroke performance. Additionally, their Hollowform arms with a 30mm axle achieve top-notch stiffness for more solid climbs and descents. Finally, their lightweight construction means you won't have to worry about any excess weight holding you back from conquering every trail.
These superb cranks are Rotor's lightest ever and incorporate OCP Mount Technology, which allows you to fine-tune the orientation of your Oval Q-rings. Additionally, these are an ideal choice of replacement for changing your old or worn-out existing road bike cranks.
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.
Pushing you towards a podium-topping finish, this stunning model uses a light carbon crank arm construction for immense durability. Vision has also gone the extra distance with this version by equipping it with CNC-machined 7075 aluminium chainrings, so you can enjoy their powerful torque performance without any excess weight. This is a perfect solution for soaring your way past your competitors for a victorious finish.
Trail riding can be tough on your gear. The ends of your cranks take a lot of abuse as the trail rushes underneath you and your bike. Race Face brings you its lightweight yet protective Crank Boots. Simple to install, these Race Face crank arm boots slip over the ends of your chainset’s carbon crank arms, protecting them from rock strikes, tricky tree roots and anything else you encounter on the trails. Race Face products are ready for some of the most abusive riding conditions out there, made for riders who value function as well as fashion. Tested on North Vancouver's notorious "Shore", you'll be safe in the knowledge that your Race Face gear can take on whatever you throw at it.
The Atlas is lighter than previous versions without sacrificing strength & adds their user-friendly Cinch interface system for new levels of versatility, making these cranks ideal across many disciplines including Trail, Enduro, DH or freeride! Crankarms forged and then machined from tough 7050 alloy – with new web bracing that improves stiffness while cutting out unnecessary material. Imagine interchangeable spiders, limitless ring combinations, a 30mm alloy spindle, and full compatibility across all relevant frame standards; all delivered with RF proven strength. Quite possibly the most versatile crankset you will ever own! Low hassle, hard-charging, limit-pushing good times–the Race Face Atlas Cinch cranks are what mountain biking is all about. Stiff and strong forged alloy arms open up the mountain letting you aggressively rip everything from trail to freeride, enduro to DH.