4iiii Powermeter Precision 3+ Shimano GRX RX810

The PRECISION 3+ power meter is 4iiii's most powerful device to date, condensed into a smaller, lighter housing and equipped with Apple Find My. It is a proven choice for professional and amateur riders alike. Whether you're competing for a qualifying spot in Kona, spending countless hours on virtual riding platforms or looking to improve your time in the local KOM segment, you need accurate and reliable tools to fulfil your potential. With up to 800 hours of battery life, automatic terrain selection, +/-1% accuracy and our industry-leading 3-year warranty, the PRECISION 3+ power meter is your reliable tool for many years to come.

HOW IT WORKS.

The PRECISION 3+ power meter is much more than just a power meter. It is your training partner that gives you security. While you are cycling, your PRECISION 3+ power meter sends watts, cadence and calories to the navigation device of your choice. When the power meter is not in use, "Find My" is activated and your power meter turns into an Apple Airtag. You can add your bike and view its location via the Apple FindMy app on your iOS device.

FUNCTIONS

APPLE FIND MY

The certainty of always knowing exactly where your bike is, wherever you go.

800 HOURS OF BATTERY LIFE

With a battery life of up to 800 hours using the same CR2032 button cell battery, you won't have to worry about replacing your PRECISION 3+ battery for years.

ACCURACY IN 3D

Not everyone has the perfect pedal stroke. With an accuracy of +/- 1%, the 4iiii is the only crank-based power meter that uses 3 strain gauges to measure all the forces of your pedal stroke.

AUTOMATIC TERRAIN SELECTION

Recognises the terrain you are riding on to give you more responsive cadence and power feedback/data. Ride safely even on less travelled roads.