4iiii Precision3+ Pro R9200 Shimano Dura Ace Power meter (dual)

4iiii Precision Pro is built on a Shimano Dura-ace crankset (9100).

4iiii wattmeter handles measurements on both sides, providing even more precise data about your watts and cadence.

The patented†and leading 4iiii Precision Pro power meter features 3D power measurement technology that can measure triaxial power on the pedal arm.

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Precision Pro communicates via† ANT+ and Bluetooth.

Train by measure and get better results.

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This app is available for Android and IOS.

Through this app you can also see the status of the CR2032 button cell battery.

This battery has a lifetime of more than +100 hours.

The power meter weighs only 26g† and has an accuracy of: ±1%

4iiii power meter has a full 3-year warranty - Quality that lasts