Skip to product information
1 of 1

Rock N' Road

S-Works Power Cranks Dual

S-Works Power Cranks Dual

48118-2000

Regular price $1,199.99 USD
Regular price $1,199.99 USD Sale price $1,199.99 USD
Sale Sold out
Shipping calculated at checkout.

Select your preferred delivery method during checkout: Shipping, Home Delivery, or In-Store Pickup. For orders with a value exceeding $500, an adult signature is required upon delivery.

This item is a special order. Shipping times may vary, with some items shipping within 3 days and others within 15 days. For more detailed information, please feel free to live chat with our dedicated Rider Care Team.

Store Availability

Use Current Location

View full details

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, we've combined our 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 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 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.
  • 110 BCD carbon spider (also compatible with 130 BCD carbon spider�sold separately).
  • Available in 165-180mm crankarm lengths.
  • 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).
  • Easy set-up and diagnostics with the Specialized Power app. (iOS and Android versions available).
  • Fits Specialized road frames with OSBB or PF30 bottom bracket shell, as well as most BB30 road frames.
  • 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.
  • Independent, dual-leg power measurement.
  • Works with ANT+ and Bluetooth� devices.
      • Free Shipping

        Can’t wait another minute to get your hands on the latest gear?
        Order online and pick up at your local Incycle or take advantage of FREE shipping on orders over $49.99 (free shipping on bikes over $1500) Exclusions Apply.

      • Chat with us

        We are here for you with over 30 years of experience supporting our cycling community.

        With a great team behind the scenes online, reach out to us via our live chator email us at support@rocknroad.com with any questions.