4iiii Precision 3+ powermeter 105 7100 - 172.5 mm

The 4iiii Precision 3+ Powermeter 105 7100 is the most powerful unit to date, compressed into a smaller, lighter package and featuring Apple Find My. The PRECISION 3+ Powermeter is a proven choice for both pros and amateur riders. Whether you are fighting for a qualifying spot in Kona, logging countless hours on virtual riding platforms, or looking to improve your time in the local KOM segment, you want accurate and reliable tools to unlock your potential. With a battery life of up to 800 hours, an automatic terrain selector, +/-1% accuracy, and backed by our industry-leading 3-year warranty, the PRECISION 3+ Powermeter will be your trusted tool for years to come.

How does the PRECISION 3+ work?

The PRECISION 3+ Powermeter is so much more than a power meter. It is your training partner that offers you peace of mind. While riding, your PRECISION 3+ Powermeter sends watts, cadence, and calories to your navigation device of choice. When the power meter is not in use, Find My is enabled and your power meter turns into an Apple AirTag. You can add your bike and view its location via the Apple Find My app on your iOS device.

Key Features
Apple Find My Integration
The peace of mind to know exactly where your bike is, wherever you go.

800 Hours 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.

3D Accuracy
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 in your pedal stroke.

Automatic Terrain Recognition
Detects the terrain you are riding on for more responsive cadence and power feedback/data. Ride confidently over less passable roads.