+/- 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.
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).