4iiii Precision Power Meter - Ultegra 6800 Left Crank 172.5mm

The 4iiii Precision Ultegra 6800 power meter provides you with accurate and consistent power and cadence data. The 4iiii Precision unit works with 3D power meter technology which is able to measure tri-axial pressure on the crank. The Precision Ultegra 6800 power meter is durable, lightweight, and communicates via both ANT+ and Bluetooth. It enables you to train harder and smarter. The 4iiii Precision Ultegra 6800 can be installed easily, and the configuration is done with 4iiii Device Configuration. This app is available for Android and iOS. With this app, you can also check the state of the CR2032 button cell battery. This battery lasts for more than 100 hours of riding. The power meter unit weighs only 9 grams and the measurement deviation is only +/- 1%25.