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Power Meters

SRAM RED Quarq Power Meter Crankset
$1,079.00
The crankset is the heart of your bicycle and where you’ll find the SRAM RED Quarq power meter. The sole job of the crankset is to convert the effort from both legs to forward motion. It is the perfect place to measure power. This power meter works for every discipline: Road, triathlon, time trial, and cyclo-cross. The chainrings are replaceable should your bike, discipline, or ability change. - A direct force power meter that measures total power output from both legs with +/-1.5% accuracy - Works for every discipline: Road, triathlon, time trial, and cyclo-cross - No compromises on materials, shifting, wheels, or pedal choice - Proven by pro teams and athletes throughout the world – Cobbled Classics, Giro d’Italia, Tour de France, Vuelta a España, World Championships - Number 1 at the Ironman World Championship for the last three years - Uses a hidden bolt to mount the chainrings – compatible SRAM chainrings ensure the derailment pin lines up behind the crank arm - 10K – programmed with over 10,000 data points to eliminate temperature effects on power measurement - AxCad – A multi-axis accelerometer switches the power meter on and measures cadence, simplifying installation and operation - Breakthrough Materials – Exogram hollow carbon fiber crank arms – the lightest, strongest crank arms SRAM makes – minimize weight and maximize speed [ELSA RS, ELSA R and SRAM RED] - Easy to use (and reuse) – LED indicator and visible ANT+ ID - The replaceable CR2032 battery never leaves you without power - Manual and automatic zeroing make it truly set and forget - Built to Last – IPX7 waterproof rating, 2-year warranty, free firmware updates, and acclaimed international support - Moves with you from bike to bike - With Quarq's free Qalvin app – available for Windows, Mac, iOS and Android – you can set the zero offset, check battery voltage, run diagnostics, and perform firmware updates for free Arm Material: Carbon arms, Machined alloy spider Weight: 778 grams (GXP 172.5mm 53x39 BB not included) * Chainrings and BB sold separately
Quarq DZero Aluminum Power Meter Chassis BB30
$779.00
When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the new DZero measures power in the heart of the bicycle — the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DZero represents the state-of-the-art in power meter technology As Quarq’s next generation of power meters, the DZero combines 10 years of technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app. - 10K temperature compensation: Eliminates variables caused by heat and cold to provide an unwavering record of your performance through all conditions - Built to last: Features an IPX7 waterproof rating - Bluetooth low energy technology and ANT+ wireless data transfer - Battery: CR2032, 200-hour battery life, change without tools - OmniCal: swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy within 1.5% - Bottom Bracket Compatibility: BB30 - Forged aluminum models do not work with BBright or BB386EVO bottom brackets
Quarq DZero Carbon Power Meter Crankset
$1,079.00
When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the new DZero measures power in the heart of the bicycle—the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DZero represents the state of the art in power meter technology As Quarq’s next generation of power meters, the DZero combines 10 years of technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and, for the carbon version, compatibility with BB386EVO bottom brackets. - 10K temperature compensation: Eliminates variables caused by heat and cold to provide an unwavering record of your performance through all conditions - Built to last: Features an IPX7 waterproof rating - Material: CNC Machined Aluminum Spider, Exogram Carbon Crank Arms - Accuracy: 1.5% - Bolt Circle Diameter: 130 BCD, 110 BCD - Q-Factor: 145mm - Wireless Technology: ANT+, Bluetooth low energy technology - Battery: CR2032, 200 hours of riding time - Weight: 578/559 grams (130/110 BCD) - Head Unit Compability: ANT+ and Bluetooth low energy technology compatible head units (available separately) - Compatibility: Traditional 5 bolt chainrings from most manufacturers. Hidden (HB) and Non-hidden Bolt (NHB) patterns. 10-speed, 11-speed, 1X and 2X. *Not compatible with Campagnolo chainrings
Kurt Kinetic Trainers inRide
$49.00
Benefit from tracking the most interesting, accurate, valuable, motivating and fun information while you're riding your Kinetic trainer with their inRide Watt Meter. It uses Bluetooth communication technology to pair a power sensor pod with Kinetic's inRide iPhone app so you can track your wattage with any Kinetic fluid trainer (smartphones and trainers sold separately). Tailor your workouts to meet your riding goals by logging your entire workout history, and even email your data to a coach for analysis, training, and planning. With the easy-to-install sensor and quick-download app, you'll be rolling and logging data in no time.
CycleOps Joule GPS
$269.99
Sleek, lightweight and easy to use, CycleOps’ Joule GPS is packed with valuable data to maximize your training. With 35 different field metrics, ANT+ compatibility, and three "dashboard" screens, you can easily keep track of power, elevation gain, distance, heart rate, TSS, cadence—the list goes on. Being able to view six customized metrics plus two sub-fields on each dashboard reduces stress and time spent changing screens. Navigating the dashboards and starting/stopping intervals is easy with a few simple, easy-to-hit rubberized buttons, and because Joule GPS keeps historical records for up to a year, you can compare current rides to past performances, making it an invaluable tool for tracking progress on the go. GPS focuses your energy on the ride, taking the guesswork out of staying on course when exploring new routes, and allowing you to map all your rides back at home.
PowerTap PowerCal Dual ANT+/BLE
$69.99
The PowerCal is the world’s first-ever power meter calculated from heart rate. At the time of its release, it was an incredible innovation combining two important training metrics: heart rate and power. And after all these years, the PowerCal remains as one of Powertap's most popular products, and for good reason—athletes of all kinds trust it ride after ride. - First-ever power meter calculated from heart rate. - Most affordable way to begin power training. - Bluetooth Smart or ANT+ compatible. - Signal Transmission: Bluetooth Smart (Cycling Power Service, Heart Rate Service, Device Info Service) or ANT+ (2.4 GHz) - Operational Temperature: 0-40C/32-103F - Battery Type: CR2032 - Battery Life: 400 Operational Hours (Bluetooth); 600 Operational Hours (ANT+) - The PowerCal is not a waterproof device and should not be submerged in water - PowerCal BLE is compatible exclusively with the PowerTap mobile application on iPhone 4S or higher. - PowerCal ANT+ is compatible with android and iPhone/iPad devices with use of appropriate ANT+ adapter key - PowerCal ANT+ is not compatible with cervos (little yellow computer) or older grey indoor cycle consoles.
Quarq DZero Power Meter Spider
$679.00
When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the DZero measures power in the heart of the bicycle—the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DZero Spider represents the state of the art in power meter technology Meet the Quarq DZero Power Meter Spider—the DZero in spider form. Ready to pair with any Quarq Prime Power ready cranksets. - Bluetooth low energy technology and ANT+ wireless data transfer - 10K Temperature Compensation - Battery: CR2032, 200-hour battery life, change without tools - OmniCal: swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy within 1.5%
Quarq DFour Power Meter Crankset
$1,179.00
When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the new DFour measures power in the heart of the bicycle — the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DFour represents the state of the art in power meter technology. Every innovation in Quarq’s next-generation DZero platform is channeled into the DFour Power Meter Crankset. 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 BB386EVO bottom brackets. - The DFour power meter is a bolt-on upgrade for Shimano’s 11-speed Dura-Ace 9000, Ultegra 6800 and 105 5800 drivetrains. - Must be paired with a compatible SRAM bottom bracket. - ELSA RS power meter owners can upgrade using the DFour Power Meter Spider. - Free firmware upgrades with the Qalvin app. - Compatible with BB30 bottom bracket. - BB30 versions ship with the spacers and wave washer required for BB386EVO installation.
Quarq DZero Aluminum Power Meter GXP Crankset
$779.00 - $1,079.99
When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the new DZero measures power in the heart of the bicycle—the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DZero represents the state of the art in power meter technology As Quarq’s next generation of power meters, the DZero combines 10 years of technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app. - 10K temperature compensation: Eliminates variables caused by heat and cold to provide an unwavering record of your performance through all conditions - Built to last: Features an IPX7 waterproof rating - Bluetooth low energy technology and ANT+ wireless data transfer - Battery: CR2032, 200-hour battery life, change without tools - OmniCal: swap chainrings without affecting accuracy. - 2-year warranty - IPX7 waterproof rating - Accuracy within 1.5% - Bottom Bracket Compatibility: SRAM GXP - Forged aluminum models do not work with BBright or BB386EVO bottom brackets
Race Face CINCH Power Meter Spindle
$599.99
The CINCH Power Meter gives you the tool to train for the Enduro and XC glory you truly deserve. Protected in your BB Shell, the CINCH Power Meter not only gives you the advantage you need to gauge your training and push your boundaries, but it does it with the compatibility and performance you have come to expect from CINCH. Thanks to the adaptable spindle, you can pick your poison from NEXT SL G4 to Turbine R cranks, and with the Race Face CINCH App and both ANT+ and Bluetooth, you can hook it up to your favorite head unit and be on your way to the wattage cottage in no time. - Power Accuracy +/- 2% - Cadence & pedal efficiency data - Dual Bluetooth low energy technology / ANT+ for head unit compatibility - Battery life over 400h & USB rechargeable - Utilizing CINCH for 1x or 2x configurations - Cinch Power Meter App for iPhone or Android - Just 65g more than standard 134mm mountain spindle
Quarq DZero Power Meter Spider for Specialized
$779.00
DZero is Quarq's next-generation power meter platform for those who live to be challenged, pushed, and tested in the toughest scenarios imaginable. Now Quarq has introduced a DZero spider designed to replace the factory spider on Specialized's S-Works carbon crankset. Quarq DZero for Specialized embodies 10 years of Quarq advances in power meter technology, plus new features such as dual Bluetooth low energy and ANT+ wireless data transfer, revised circuitry, a new strain gauge design and the Qalvin BLE app. You also get AxCad accelerometer cadence, the easy-to-replace CR2032 battery, an IPX7 waterproof rating and a 2-year warranty. Features & Benefits: - Bluetooth low energy technology and ANT+ wireless data transfer - AxCad – no cadence magnet required - 10K Temperature Compensation - Battery – CR2032, 200-hour battery life, change without tools - Power Balance - OmniCal – swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy – within 1.5%, measuring both legs - Free firmware upgrades with the Qalvin app Essential Details: - Traditional 5-arm spider compatible with Specialized S-Works Carbon Road Crank Arms from 2013-Current. - Available in 130 BCD and 110 BCD. - Replaces the standard spider. - A Specialized lockring tool is required for installation.
Sigma Sport Rox GPS 11.0 Set
$259.99
The ROX GPS 11.0 Set contains an R2 DUO COMBO speed and cadence sensor and an R1 DUO heart rate transmitter to take your training to the next level. Connect with sensors and power meters via ANT+. Transfer data to smart phones and tablets via Bluetooth Smart and the SIGMA LINK app. The new Strava live segments, GPS track navigation, sport profiles, and many more features are guaranteed to make the ROX GPS 11.0 the ideal training tool for the most demanding cyclists. Bike functions: - Current speed (kmh/mph) - Average speed - Maximum speed - Current vs. average speed comparison - Distance - Training time - Duration - Calories - Clock (12/24h) - Date - Cadence - Average cadence - Maximum cadence - Average expansion - Average expansion uphill - Average expansion downhill Temperature functions: - Current temperature - Minimum temperature - Maximum temperature Altitude measurement functions: - Altitude - Incline (%) - Rate of ascent in m/min - Altitude profile graph - Altitude uphill - Maximum altitude - Distance up hill - Training time uphill - Average speed uphill - Average rate of ascent - Maximum rate of ascent - Distance downhill - Training time downhill - Average speed downhill - Average rate of descent - Maximum rate of descent - Average slope downhill - Maximum slope downhill Navigation functions: - Time to destination - Estimate time of arrival (ETA) - Distance to destination - Direction - Track view Lap functions: - Manual or automatic laps - Number of laps - Time in lap - Distance in lap - Average speed in lap - Calories in lap - Average altitude in lap - Maximum altitude in lap - Elevation gain in lap - Elevation loss in lap - Average incline in lap - Average decline in lap - Average rate of ascent in lap - Average rate of descent in lap - Average balance n lap - Average power in lap - Maximum power in lap - Normalized power (NP) in lap - Normalized power (NP) in last lap - Average cadence in lap - Maximum cadence in lap - Average heart rate in lap - Maximum heart rate in lap - Pedaling time in lap - Pedaling index in lap - List of laps - Average balance in automatic lap - Average power in last lap - Maximum power in lap Power functions: - Balance - 3 sec average balance - 10 sec average balance - 30 sec average balance - Average balance - Pedal smoothness - Power - Power in % FTP - Average power - 3 sec average power - 10 sec average power - 30 sec average power - Intensity Factor (IF) - Maximum power - Power in KJ - Normalized Power (NP) - Watt/kg power ratio - Power zones - Torque effectiveness - Power target zone Heart rate functions: - Heart rate - Average heart rate - Maximum heart rate - Minimum heart rate - % HR max. - Average % of HR max - Zone bars (heart rate/CAD/SPD) graph - Intensity zones (graph) - Heart rate (graph) Miscellaneous: - STRAVA live segments - ANT+ - Configuration of custom training programs - SRAM eTap - Shimano Di2 - Digital three-axis compass - Barometric altitude measurement - Sports profiles (incl. customizable training views) - Waypoints with custom text - Up to 100 hours log capacity - Backlight - Water tight in accordance with IPX7 - Graphic data evaluation in the DATA CENTER - GPS accuracy indicator - Battery capacity (in %) - Di2 battery status - Expansion - Di2 front gear - Di2 gear ratio - Di2 gears - Di2 rear gear
Quarq DFour91 Power Meter Chassis
$1,179.00
Make the most of your Shimano Dura-Ace R9100 groupset by upgrading to Quarq’s DFour91 power meter, which embodies all the advances of the next-generation DZero platform. Designed especially for Shimano's Dura-Ace R9100 series, the Quarq DFour91 Power Meter brings Quarq's next-generation DZero platform to Shimano's latest groupset. Compatible with Ultegra R8000 chainrings. DFour91 embodies 10 years of Quarq advances in power meter technology, plus new features such as dual Bluetooth Low Energy and ANT+ wireless data transfer, revised circuitry, a new strain gauge design and the Qalvin BLE app. The DFour91 power meter is a bolt-on upgrade, pairing with the 11-speed Dura-Ace R9100 or Ultegra R8000 chainrings. Get the chassis, which includes Quarq's lightweight, sturdy Exogram carbon crank arms. The GXP and BB30 versions work with every bottom bracket shell, including BBright and BB386EVO. If you already have a power meter using the 8-bolt interface, upgrade with the DFour91 spider. Features & Benefits: - Exogram carbon crank arms - Bluetooth low energy technology and ANT+ wireless data transfer - AxCad – no cadence magnet required - 10K Temperature Compensation - Battery – CR2032, 200-hour battery life, change without tools - Power Balance - OmniCal – swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy – within 1.5%, measuring both legs - Free firmware upgrades with the Qalvin app Essential Details: - Designed for Dura-Ace R9100 chainrings. Compatible with Ultegra R8000 chainrings. - Must be paired with a compatible SRAM bottom bracket. - BB30 versions ship with the spacers and wave washer required for BB386EVO installation. - 8-bolt power meter owners can upgrade using the DFour91 Power Meter Spider.
Specialized Power Cranks - Shimano 105 Upgrade Kit
$425.00
Whether you're looking to take your training to the next level or you simply want a better way to measure energy expenditure, a power meter is your best bet. And the Power Cranks 105 Upgrade Kit are no exception. With our lightweight power sensors on a Shimano 105 crankarm, it's the perfect way to enter the power meter game. The development of Power Cranks began with our Human Performance Team looking at riders in realistic scenarios on the bike. Historically, power meters have been validated by two different methods—one is by measuring the produced torque by applying a static, linear load to a crankarm or chainring, while the second uses a power generating motor to pedal the bike. Well, cycling is neither static nor linear, and humans apply power much differently than a machine. So, we found that neither of these methods answers the 'real-world' accuracy question. To get the best test for accuracy, in all types of riding scenarios, we built our own cycling treadmill, the WinMill, to measure power output to a known truth. This new benchmark lets us evaluate accuracy under all riding conditions—seated versus standing, various power and cadence levels, different weights, and a myriad of gear. This data acquisition process is our gold-standard for testing power meters, and through our testing and external validation from the Locomotion Lab in Boulder, Colorado, Power Cranks have been proven to have the highest accuracy in real-world scenarios (+/- 1.5%). The Power Cranks are also easy to live with, with class-leading temperature compensation firmware and waterproof enclosures. Calibration is only required during seasonal-type fluctuations in temperature, and the included wrench makes battery swaps a breeze. - +/- 1.5% real-world accuracy tested on the WinMill and validated by the Locomotion Lab in Boulder, CO. - Works with ANT+ and Bluetooth devices. - Easy set-up and diagnostics with the Specialized Power app. (iOS and Android versions available). - Shimano 5800 generation 105 left-side power measurement. - Right crankarm and spider NOT included. - Available in 170-175mm crankarm lengths.
Specialized Power Cranks - Shimano Ultegra Upgrade Kit
$525.00
Whether you're looking to take your training to the next level or you simply want a better way to measure energy expenditure, a power meter is your best bet. And the Power Cranks Ultegra Upgrade Kit are no exception. With our lightweight power sensors on a Shimano Ultegra crankarm, it's the perfect way to enter the power meter game. The development of Power Cranks began with our Human Performance Team looking at riders in realistic scenarios on the bike. Historically, power meters have been validated by two different methods—one is by measuring the produced torque by applying a static, linear load to a crankarm or chainring, while the second uses a power generating motor to pedal the bike. Well, cycling is neither static nor linear, and humans apply power much differently than a machine. So, we found that neither of these methods answers the 'real-world' accuracy question. To get the best test for accuracy, in all types of riding scenarios, we built our own cycling treadmill, the WinMill, to measure power output to a known truth. This new benchmark lets us evaluate accuracy under all riding conditions—seated versus standing, various power and cadence levels, different weights, and a myriad of gear. This data acquisition process is our gold-standard for testing power meters, and through our testing and external validation from the Locomotion Lab in Boulder, Colorado, Power Cranks have been proven to have the highest accuracy in real-world scenarios (+/- 1.5%). The Power Cranks are also easy to live with, with class-leading temperature compensation firmware and waterproof enclosures. Calibration is only required during seasonal-type fluctuations in temperature, and the included wrench makes battery swaps a breeze. - +/- 1.5% real-world accuracy tested on the WinMill and validated by the Locomotion Lab in Boulder, CO. - Works with ANT+ and Bluetooth® devices. - Easy set-up and diagnostics with the Specialized Power app. (iOS and Android versions available). - Shimano 8000 generation Ultegra left-side power measurement. - Right crankarm and spider NOT included. - Available in 170-175mm crankarm lengths.
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