$1,299.00 - $1,850.00
Pioneer's full crankset power meters are simply some of the best power-monitoring systems on the planet. The Pioneer Shimano Dura Ace 9000 crankset is your chance to ride the same technology used by the world's best riders, ensconced in one of the most aesthetically pleasing cranksets ever created. Pioneer's created the first, and only, power meter that measures power output and pedaling stroke efficiency for each individual leg, in real time, allowing you to analyze and adjust your technique on the fly. At the heart of the Pioneer Power Meter System are two streamlined strain gauge monitors that detect the slightest tangent and radial-force direction as power is 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, letting you fine-tune your pedaling to find race-winning form. With advanced technology accurate to +/- 2%, ANT+ transmitting, and active temperature compensation, the Pioneer 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
$595.00 - $1,550.00
Shimano's R9100 series crankset achieves the ultimate in optimal power transfer. It does this through its broader Hollowtech II arm and a more reinforced outer chainring on its unique asymmetrical four-arm spider construction. The R9100 cranks set the highest standards for stiffness and lightness. With the first integrated power meter, you can expect extremely accurate data. The FC-R9100-P is Shimano’s first power meter, as well as Shimano’s first crank-integrated power meter on the market. It retains its unique asymmetrical four-arm spider construction, but with a ‘brain’ mounted on the inside. On its crank arm are the strain gauges. Working perfectly in sync with each other, you can use the extremely precise power data to improve your performance. - Accurate real time data - Compatible with 3rd party displays - Bluetooth / ANT technology - Hollowtech II construction - Hollowglide chain - 11-speed compatible - Waterproof in all conditions - ±2% accuracy of strain gage measured power - Integrated rechargeable battery - Simple zero reset with switch on transmitter - Average weight (170mm, w/o BB): 691 grams (53-39T)/679 grams (50-34T)
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.
The Stages Power meter is built on to a non-drive FC-9000 crank arm specifically to pair with Shimano's Dura-Ace 9000 crank. This meter has been proven, as it was ridden to victory in the 2015 Tour de France by Team Sky. This Stages Power meter is slimmer, and up to 28% lower profile than our original meter. It's sleeker by way of a 17% reduction in frontal area, and Stages also made it stronger. The new housing design increases the strength of the battery door and housing connection by 200% over the previous design. This Shimano Dura-Ace 9000 Stages Power meter is compatible with all Shimano Hollowtech II road drivetrains. - Accuracy: ± 2% - Power meter housing: new low profile design, with new door interface - Weight: Only adds 20g to base crank arm - Battery Life: 200+ hours (coin cell: CR2032) - Power range (Watts): 0 to 2500 - Cadence range (rpm): 20-220 - Water resistance rating: IPX7 - Frame Compatibility: Most frames, see fit guide in our Support section - Device Compatibility: ANT+, Bluetooth Smart Ready Software Compatibility: Training Peaks, Strava, Garmin Training Center and others
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
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