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Power Meters

PowerTap G3 Rear Hub
$789.99 - $1,289.99
Some equipment makes your bike faster. Some makes you faster! PowerTap’s proven, 325-gram PowerTap G3 Hub does both. Make the most of your time on the bike — nail your intervals, stay within your targeted zones for long rides, and track your Training Stress Score (TSS) and Chronic Training Load (CTL) for long-term gains and reaching your goals. The low-profile G3 hub is made of light, durable aluminum with wide flange spacing for a great wheel. The G3 is accurate to within +/-1.5%, and is ANT+ capable for use with your favorite compatible cycling computer (sold separately). Plus, all the electronics are held within a small, easily removed outer cap.
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
SRAM XX1 Eagle Quarq Power Meter Crankset
$1,129.00
The SRAM XX1 Eagle Power Meter unites Quarq's DZero power meter platform with carbon tuned crank arms for robust, intuitive power measurement in the lightest ever chassis. The DZero platform embodies 10 years of Quarq's technology advances and adds new features such as dual Bluetooth low energy and ANT+ wireless data transfer, and the Qalvin BLE app. The companion X-SYNC 2 chainrings are designed specifically for Eagle chains and drivetrains. - BB Included: No - Chainring BCD: 104 - Chainrings sold separately
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 ANT+ USB Stick
$45.00
Pair Quarq's ANT+ USB stick with Qalvin 1.5 for firmware upgrades, diagnostics, and calibration on Windows and Macintosh computers.
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 DFour Power Meter Spider
$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 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 Spider represents the state of the art in power meter technology - The DFour Spider is a bolt-on upgrade for Shimano’s 11-speed Dura-Ace 9000, Ultegra 6800 and 105 5800 chainrings. - 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. - IPX7 waterproof rating. - Accuracy within 1.5%
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.
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 Aluminum Power Meter GXP Crankset
$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: SRAM GXP - 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
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 Magnet Kit
$14.00 - $19.99
Quarq's Magnet Kit installs in a cinch and stays put for consistent power measurement. • The adhesive and cable mount model screws on under your cable guide • The Bottom bracket and ring mount model is for threaded English and Italian (GXP) bottom brackets, and fits between your frame and bottom bracket
Pioneer Power Meter Upgrade Kit
$579.00
Power to the people! Add the Pioneer Power meter to your existing Shimano crank. Pioneer's crankset-based power meters are simply some of the best power-monitoring systems on the planet, and the Upgrade Kit gives you the chance to add it to your existing crankset. At the heart of the Pioneer Power Meter System are two streamlined strain gauge monitors that can detect the slightest tangent and radial force direction as power is applied to the crank arms. This proprietary system detects the amount and the direction of force at 12 different points in each pedaling stroke for each leg, and allows you to fine tune your pedaling to find race-winning form. The Pioneer Power Meter Installation Kit comes with everything you need to package and send your existing Shimano crank to Pioneer for professional installation and calibration. - Compatible with Shimano Dura-Ace 9000 or Ultegra 6800 (Right Side Cranks Only) - Compatible Crank-arm Lengths: 165, 167.5, 170, 172.5, 175, 177.5, 180mm - Fully Integrated Strain Gauge for force measurement - Easy connectivity with ANT+ compatible Cycle Computers - HDPower Metrics when connected to Pioneer Cycle Computers - Lightweight Sensor Only 40 grams
Pioneer SGX-CA500 GPS Cycle Computer
$299.99
Pioneer's power meters are simply some of the best power-monitoring systems on the planet, and the SGX-CA500 computer is your chance to get the most out of your power meter and have a world-class data display. Pioneer has created the first, and only, power meter that measures power output and pedaling stroke efficiency for each individual leg, and the SGX-CA500 lets you analyze this data in real time. A few quick swipes give you access to your state-of-the-art ride data, and intuitive controls allow for scrolling, zooming, and screen customization to let you see what you want, when you want it. The 1.87-inch LCD screen makes it incredibly easy to see critical data, even if you are on the rivet up the final climb. As an added bonus, users of Shimano’s Di2 electronic road bicycle shifting system can now utilize the SGX-CA500 to track gearing and system status as they ride. - Delivers high functionality for practical situations, in a small, lightweight (75 g) package - Visualizes pedaling state and efficiency through graphical displays of force vectors (when used together with a pedaling monitor sensor) - Enables new modes of training focused on pedaling skill development - Displays over 100 data types, such as power, cadence, speed, and incline, all in real time - Easy, intuitive touch-panel operation, even when wearing full-finger gloves - Upload data to Cyclo-Sphere, our online data analysis service, via USB or Wi-Fi connection (Wi-Fi Internet connection required) - Weight: About 75 g - Dimensions: 58 mm (W) x 58 mm (H) x 19 mm (D) (without projection parts) - Connector: microUSB - Water-resistance: This device has a water-resistance rating of IPX-6/IPX-7 - Communications system (sensors): ANT+ - Communications method (network): Wi-Fi - Positioning system (latitude/longitude): GPS - Positioning system (altitude): Atmospheric pressure sensor - Display: 160x128 pixel, horizontal 1.87-inch outdoor type, Black and white touch panel (resistive touch display) - Built-in flash memory: 4 GB (user available capacity 3 GB) - Guaranteed operational temperature range: -10 to 50°C - Charging temperature: 0 to 45°C - Power supply voltage: DC 5V - Battery type: Lithium-ion battery - Battery operating time: Approximately 12 hours (the battery operating time may decrease depending on the operating conditions) - Charging time: Approximately 4 hours (Power off or normal charging) - Accessories: Bracket, USB cable, Strap, Quick Start Guide, Warranty card, Important Information for the User - Specifications and design are subject to change without notice.
Pioneer Shimano Ultegra 6800 Crankset Power Meter
$1,299.99
Pioneer's full crankset power meters are simply some of the best power-monitoring systems on the planet, and Pioneer's Shimano Ultegra 6800 crankset is your chance to ride the same technology used by the world's best riders. Pioneer's created the first, and only, power meter that measures power output and pedaling stroke efficiency for each individual leg, in real time, so you can analyze and adjust your technique on the fly. At the heart of Pioneer's Power Meter System are two streamlined strain gauge monitors that can detect the slightest tangent and radial force direction as power's applied to the crank arms. This proprietary system detects the amount and direction of force at 12 different points in each pedaling stroke for each leg, allowing you to fine-tune your pedaling to find race-winning form. With advanced technology accurate to +/- 2%, ANT+ transmitting, active temperature compensation, Pioneer's power meter is perfect for any cyclist. Additionally, installation is fast, simple, and clean with zero wires, magnets, or zip ties. - Standard: 53/39 - Mid-Compact: 52/36 - Compact: 50/34
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.
Kinetic inRide with Heart Rate Monitor
$99.00
Benefit from tracking the most interesting, accurate, valuable, motivating and fun information while you're riding your Kurt Kinetic trainer, with their inRide Watt Meter. It uses your iPhone or iPad's Bluetooth communication technology to pair a power sensor pod and heart-rate monitor 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 and training planning. With the easy-to-install sensor and quick-download app, you'll be rolling and logging data in no time.
Garmin Vector 2S Upgrade Pedal
$499.99
Go from one-sided to dual-sided power measurement with Garmin's Vector 2S Upgrade Pedal. With your standard 2S system (sold separately) you only have power data from your left leg, which leaves the possibility of unknown discrepancies between your left and right sides. Injuries, natural imbalances, and other factors that leave one side of your body less powerful than the other are common. By measuring power from both legs, you get a much more accurate picture of what you're doing and how to improve on any asymmetry you might have.
Garmin Vector 3 Dual-Sensing Power Meter
$999.99
Dual-sensing Pedal-based Power Meter Ride stronger, smarter, connected with the Vector 3 pedal-based power meter. As you strive to beat your personal best on your next race or Gran Fondo, power is the most reliable way to gauge your performance on any given day, at any given time. Unlike other power meters, Vector 3 has the sensors housed right in the pedals, so it delivers reliable, accurate data on every training session. - Installs like any other pedal and quickly transfers between bikes - Measures total power, left/right balance, cadence and cycling dynamics - Sleek design provides greater cornering clearance and improved stack height - Fully integrates with Garmin cycling ecosystem for data analysis - Allows for easy updates via compatible Edge cycling computers, ANT+ connectivity or Bluetooth-enabled fitness devices and Garmin Connect Mobile app - Battery life: up to 120 hours - Cleat hardware included WARNING: The maximum weight limit of the cyclist using the Vector system is 231 lbs (105 kg). Cyclists over this weight limit risk personal injury and property damage. Specifications: - Battery type: LR44/SR44 (x4) - Battery life: up to 120 hours - Weight: 316 g - Max. rider weight: 105 kg - Accuracy: +/- 1.0% - Cleat type: Keo - Q-factor: 53 mm/55 mm with supplied spacing washer - Stack height: 12.2 mm - Field calibration - Adjustable release tension - Garmin Connect - Measurement location: Spindle - Communication: ANT+ and Bluetooth
Garmin Vector 3S Single-Sensing Power Meter
$599.99
Single-sensing Pedal-based Power Meter Ride stronger, smarter, connected with the Vector 3S pedal-based power meter. As you strive to beat your personal best on your next race or Gran Fondo, power is the most reliable way to gauge your performance on any given day, at any given time. Unlike other power meters, Vector 3S has a sensor housed in the left pedal, so it delivers reliable, accurate data on every training session. - Installs like any other pedal and quickly transfers between bikes - Reports cadence and total power (watts) - Easily upgrades to dual-sensing system - Fully integrates with Garmin cycling ecosystem for data analysis - Allows for easy updates via compatible Edge cycling computers, ANT+ connectivity or Bluetooth-enabled fitness devices and Garmin Connect Mobile app - Battery life: up to 120 hours - Cleat hardware included WARNING: The maximum weight limit of the cyclist using the Vector system is 231 lbs (105 kg). Cyclists over this weight limit risk personal injury and property damage. Specifications: - Battery type: LR44/SR44 (x2) - Battery life: up to 120 hours - Weight: 324 g - Max. rider weight: 105 kg - Accuracy: +/- 1.0% - Cleat type: Keo - Q-factor: 53 mm/ 55mm with supplied spacing washer - Stack height: 12.2 mm - Field calibration - Adjustable release tension - Garmin Connect - Measurement location: Spindle - Communication: ANT+ and Bluetooth
Garmin Vector S  to Vector 2S Upgrade Kit
$99.99
Upgrade your Vector S pedal-based power meter to the dual-sensing Vector 2S system. Garmin's Vector S to Vector 2S Upgrade Kit can accommodate both standard (12-15 mm) and large (15-18 mm) crank arms. Upgrading allows you to take that next step in performance by measuring the power from both legs, which can reveal strength deficiencies between your left and right side.
Garmin Vector to Vector 2 Upgrade Kit
$149.99
Upgrade your Vector pedal-based power meter to the dual-sensing Vector 2 system. Garmin's Vector to Vector 2 Upgrade Kit can accommodate both standard (12-15 mm) and large (15-18 mm) crank arms. Upgrading allows you to take that next step in performance by measuring the power from both legs, which can reveal strength deficiencies between your left and right side.
PowerTap Joule GPS+
$249.99 - $329.99
The Joule GPS+ does everything the original Joule GPS did - and then some. Our newest cycling computer acquires GPS in the blink of an eye, seamlessly connects directly to the PowerTap Mobile App for automated ride downloads and comes with an eye-catching PowerTap orange back case. Using the PowerTap Mobile App the GPS+ gives you freedom to choose between ANT+ or Bluetooth SMART without having to think about it.
Quarq DFour91 Power Meter Spider
$779.00
Designed especially for Shimano's Dura-Ace R9100 series chainrings, 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. If you already have a power meter using the 8-bolt interface, upgrade with the DFour91 spider. 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: - Designed for Dura-Ace R9100 chainrings. Compatible with Ultegra R8000 chainrings. - Only 8-bolt power meter owners can upgrade using the DFour91 Power Meter Spider. 8-Bolt Compatibility: Power meters and cranksets on 8-bolt since release: - Quarq ELSA RS (Aug '14) - Quarq RIKEN AL (Apr '15) - Quarq Prime Power Ready Cranksets (Mar '16) - SRAM RED Power Ready Cranksets (Mar '16) - SRAM XX1 Power Meter (Aug '14) (Note: Boost spiders should not be paired with 156Q crank arms) - SRAM RED BB386EVO standard crankset (Mar '16) Power meters switched to 8-bolt: - Quarq RIKEN R (Revision AEQ onward, except warranty/replacement – Jul '15) - SRAM RED (eTap graphics – Jan '16) Incompatible products: - Quarq ELSA R
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.
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.
Rotor InPower 3D+ Power Meter Crankset
$1,079.00
Manufactured in Spain from 7055 aluminum through state-of-the-art CNC-machining, Rotor's INpower 3D+ is a single-leg power meter crankset that reports metrics through user-friendly software. Seamlessly integrated inside a compact crank axle, the INpower 3D+ 110 BCD is protected from shocks, crashes, and outside contaminants, plus it allows you to maintain your bike’s sleek, elegant aesthetics. Equipped with the MAS spider for greater tuning options when used with Rotor OCP rings. - Equipped with 4 strain gauges in the spindle that reports power, cadence, Torque 360, OCA, left side pedal smoothness and left side torque effectiveness - Transmits wirelessly via ANT+ 2.4 - 100% machined CNC, Al 7055 T6
Quarq Battery Cover Red/Elsa/Riken
$39.00
Quarq's Battery Cover replaces your lost or damaged one. It's water-tight, made of aluminum, and works with Quark's Elsa, Riken, and Red 22 power meters (sold separately).
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