Specialized Power Crank Arm Shimano 105 FC-R7000 Series

Specialized Power Crank Arm Shimano 105 FC-R7000 Series click to zoom image
Specialized Power Crank Arm Shimano 105 FC-R7000 Series click to zoom image
Specialized Power Crank Arm Shimano 105 FC-R7000 Series  click to zoom image
Specialized Power Crank Arm Shimano 105 FC-R7000 Series 172.5mm Grey/Black  click to zoom image
Specialized Power Crank Arm Shimano 105 FC-R7000 Series 175mm Grey/Black  click to zoom image
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 sensor on a Shimano 105-7000 Series 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 7000 generation 105 left-side power measurement.
Right crankarm and chainring NOT included !
Available in 170-175mm crankarm lengths.

Please take note of the pictures your frames seatstays should have enough clearance for the power meter to pass by as the crank rotates. If you have doubts that your frames seat stay design will not allow this then please do not purchase or consult us first and we can maybe check.

This crankarm will only fit onto the corresponding shimano axle it doesn't have to be a 105 though you can mix and max with Ultegra,Tiagra even Dura-Ace
Offer £285.00
That's a saving of £35.00/10%
In Store Now


Hover mouse for full example.
Options 170mm Grey/Black In Stock
172.5mm Grey/Black In Stock
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.
We have placed cookies on your browsing device to enable this website to function correctly.
Further usage of this website indicates you are happy for us to do this..
Find out about the cookies we have set and how we use them.
Updates and Exclusives: Sign Up -