With the Stages Cycling Shimano Ultegra R8000 Single Leg Power Meter Crank Arm you'll find all of the data you want, without the price tag that destroys your annual upgrade budget, so you can push yourself harder to reach for gains. It collects data with its easy to install left-leg power meter to deliver tangible information and reliable numbers to improve your ride, and overall fitness.
Features
Up your training results with a left crank power meter
Measures power with +/- 1.5% accuracy
Active Temperature Compensation maintains accuracy
Internal accelerometer measures cadence
Powered by an easily replaceable CR2032 coin cell battery
Communicates via Bluetooth Smart and ANT+ wireless protocols
Pairs with Stages Power App for firmware updates and zero resets
Stages Cycling brings power data into an affordable price range