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 sensor 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 answer 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 chainring NOT included.
- Available in 170-175mm crankarm lengths.
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Professionally packed and fast shipping
Our long-standing relationships with UPS FedEx DHL and other global carriers gives us the ability to provide an array of shipping services. Our warehouse employees will pack all goods to our exacting requirements. Prior to shipping, your goods will be thoroughly examined and safely secured. We ship to thousands clients every day from all over the world. This is an indication of our determination to become the largest online retailer globally. These warehouses are located in Europe as much as they are in the USA.
Orders with more than one item are assigned processing periods for each item.
We will inspect each and every one of the products before they are shipped. The majority of orders are shipped within 48 hrs. The delivery time will be between 3-7 days.
Returns
The stock is constantly changing and not fully managed by us because of the involvement of many entities, including the factory as well as our warehouse. Therefore, the actual inventory could fluctuate at any moment. Please understand it may happen that your order may be out of stock after your order has been made.
Our policy is valid for 30 days. If it's been more 30 days since you've purchased your item and we're unable to offer you a complete refund or exchange.
To be eligible for a return, your product must be unopened and in the same condition that you received it. It must also be returned in its original packaging.
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