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Power Meters

Stages Cycling Gen 3 Stages Power L Ultegra 8000 Power Meter
$349.99
The new Gen 3 single-sided Stages Power L meter is built on to a non-drive-side Shimano Ultegra R8000 crank arm and is compatible with all Shimano Hollowtech II road drivetrains. 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. 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. 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 Specifications - Power meter housing: low profile design, with robust door interface - Weight: Only adds 15g to base crank arm - Battery Life: 200+ hours (coin cell: CR2032) when used as a single sided meter - Power range (Watts): 0 to 5000 - Cadence range (rpm): 10-220 - Water resistance rating: IPX7 - Sizing Options: - Lengths: 165mm, 170mm, 172.5mm, 175mm Includes: - Power Meter - High quality CR2032 coin cell battery - Lifetime access to Stages Link for power meter management and firmware upgrades. - 2 months free access to Stages Link premium training and coaching features. - Product Identification Card with Serial Number and ANT+ I.D. Number. - User Guide
Specialized Power Cranks - Shimano 105 Upgrade Kit
$381.95 $425.00 10% Off
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.
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
Specialized S-Works Power Cranks - Dual-Sided
$999.95 $1,150.00 13% Off
No matter your skill level or experience on the bike, there's no better way to enhance your training and racing performance than by riding with a power meter. Lucky for you, Specialized has combined their incredibly light and stiff carbon fiber S-Works road cranks with dual-sided power measurement, making it the lightest (440g/172.5mm) and most accurate power meter available. The development of Power Cranks began with Specialized's 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, they found that neither of these methods answer the "real-world" accuracy question. To get the best test for accuracy, in all types of riding scenarios, Specialized built their own cycling treadmill, the WinMill, to measure power output to a known truth. This new benchmark lets them 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 their gold-standard for testing power meters, and through their 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 Dual-Sided S-Works Power Cranks utilize separate strain gauge systems to individually measure the effort produced by each leg. This maximizes the accuracy of your total power numbers, plus it helps you to better understand your performance as fatigue increases and when you're recovering from injury. And with class-leading temperature compensation firmware and waterproof enclosures, Power Cranks are easy to live with. 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. - Independent, dual-leg power measurement. - Works with ANT+ and Bluetooth devices. - Easy set-up and diagnostics with the Specialized Power app. (iOS and Android versions available). - Hollow carbon crankarms, carbon spider, and oversized alloy spindle offer superior stiffness and lighter weight than the competition—440 grams for 172.5mm crankarm length. - Fits Specialized road frames with OSBB or PF30 bottom bracket shell, as well as most BB30 road frames. - 110 BCD carbon spider (also compatible with 130 BCD carbon spider—sold separately). - Compatible with Shimano and SRAM drivetrains. Chainrings are sold separately. Use only with Specialized/Praxis chainrings 06217-1702 (52/36T) and 06218-1713 (50/34T). - Available in 165-180mm crankarm lengths.
Specialized Power Cranks Dura-Ace Dual
$1,299.95 $1,500.00 13% Off
No matter your skill level or experience on the bike, there's no better way to enhance your training and racing performance than by riding with a power meter. And for all of you Dura-Ace fans out there, we've combined our extremely light power sensors with a Shimano Dura-Ace crankset to give you the most accurate and precise power meter available. 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 Dual-Sided S-Works Power Cranks utilize separate strain gauge systems to individually measure the effort produced by each leg. This maximizes the accuracy of your total power numbers, plus it helps you to better understand your performance as fatigue increases and when you're recovering from injury. And with class-leading temperature compensation firmware and waterproof enclosures, Power Cranks are easy to live with. 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 - Independent, dual-leg power measurement - Works with ANT+ and Bluetooth devices - Easy set-up and diagnostics with the Specialized Power app. (iOS and Android versions available) - Available in 170-175mm crankarm lengths - All models include 52/36T chainrings
Quarq ELSA 10R Power Meter Crankset
$1,994.99 - $2,045.00
To reach your potential as a cyclist, it's a great idea to train with a power meter, and the Quarq ELSA brings together incredible accuracy and superb performance in a wireless, crank-based unit. It uses ANT+ wireless technology to pair with a head unit of your choice (sold separately), to display and record your data. Plus, an LED indicator lets you know you've correctly synced the ELSA with your head unit. And, the user-replaceable battery is a simple to swap and readily available CR2032. With the ELSA's excellent accuracy you get great data, even if you swap chainrings, thanks to Quarq's Omnical technology, and with their Power Balance, the ELSA also uses algorithms to determine the independent power from each of your legs, on the fly. Plus, the SRAM-made Exogram hollow carbon crankarms and precision-shifting 5-bolt chainrings will leave you floored by their lightness, stiffness and beauty.
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