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.
- AXS enabled for easy monitoring and firmware upgrades - Fully integrated power meter into a direct mount chainring - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - 8-bolt direct mount compatibility only to RED and Force eTap AXS cranks. - Speeds: 12 - Chainring material: Aluminum - Power Meter Type: Ant USB
In certain disciplines, the single-ring drivetrain reigns supreme. Championing simplicity, strength and durability, the SRAM RED 1 AXS power meter meets the demands of triathletes, time trialists and cyclocross racers. The power meter features improved aerodynamics thanks to direct mount aero chainrings with fully integrated power, and the tighter gearing range is perfect for racing and flatter terrains. - Single-ring drivetrain simplifies functionality - 48T and 50T variants have fully integrated power into a direct mount aero chainring - 36-46T variants have spider-based power - Chainrings can be easily changed without requiring recalibration of the power meter - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - DUB bottom bracket adds durability and simplicity - Non-aero chainrings can be installed with a single tool, making gearing changes a breeze - Bottom bracket not included - BB Compatibility: All SRAM Road DUB BBs - BB Spindle Interface: DUB - Chainring material: Aluminum - Crank arm material: Carbon - Power Meter Type: ANT+ and BLE
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
The CINCH Power Meter utilizes spindle-based power paired with our highly adaptable EC90 SL Crankset giving you the flexibility to evolve your setup to your needs. Racing 1x for CX? Done, 2x for road? Simple. Changing from 170mm cranks arms to 172.5? You don’t have to buy a new power meter, just move the spindle. Fitting EC90SL to a mountain bike BB shell? Consider the 134mm MTB spindle. With an easily-accessible 400+ hour rechargable battery, The CINCH Power Meter only adds 65g to the EC90 SL’s industry-leading lightweight crankset, providing you cadence readings and calculated pedal efficiency in a clean and protected spindle. And with the CINCH App, you can check battery levels, install updates and calibrate your power meter on the fly.
The SRAM RED AXS power meter breaks with tradition — and breaks through to new levels of performance. SRAM reengineered road gearing: reducing front chainring size and adding more range to the rear cassette. They also maintained a 13-tooth delta on all chainring pairs, ensuring precise shifting for any setup. This results in more useful gearing and better shifting across all configurations. These power meters are also designed with Quarq's premier DZero power measurement technology fully integrated into the crankset. Welcome to the pinnacle of the power meter. - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Integrated power measurement - Power meter is fully integrated into the chainring set for lighter weight - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - Improved front shifting performance for crisp and accurate front shifts - Unique chainring shape results in a lighter weight, stiffer, more durable crankset - Integrated chainring design significantly reduces weight - DUB bottom bracket adds durability, simplicity and broad compatibility - Speeds: 12 - BB Compatibility: All SRAM Road DUB BBs - BB Spindle Interface: DUB - Chainring material: Aluminum - Crank arm material: Carbon - Power Meter Type: ANT+ and BLE - Bottom bracket not included
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.
$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.
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
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)
Page 1 of 1