4iiii Precision 3 Shimano Ultegra R8100 Single Side Power Meter

How do you define success? Whether you are fighting for a Kona slot, spending countless hours on the indoor trainer or striving for a personal best; one thing we know, success takes time.

The Precision 3 takes years of powermeter expertise and our patented 3D strain gauge technology, and condenses them into a thinner form factor – to expand frame compatibility.

With up to 800 hours of battery life, +/-1% accuracy and backed by our legendary 3-year warranty, the PRECISION 3 Powermeter will be your trusted training tool for years to come.

Features:

- Industry leading battery with 800 hours of battery life
- LED product status indication light: wake-up (green), zero-offset (blue) and low battery (red)
- Patented 3D strain gauge technology for +/- 1% accuracy
- Ultra-slim design fits most frames
- Waterproof, durable, designed and tested in the Canadian Rockies for the harshest conditions.
- Lightest power meter on the market at only 9 grams
- Compatible with previous versions of the current PRECISION power meter
- Active temperature compensation
- Wireless function and firmware upgrade capability
- Battery operated with CR2032 batteries
- Compatible with third-party training apps such as Zwift, TrainerRoad, SYSTM and more.

Specifications:

- Accuracy: +/- 1%
- Battery type: CR2032 battery
- Battery life: 800 hours
- Waterproof: IPx7 rating
- Cadence Range: 30 - 170 RPM
- Power Range: 0 - 4000 W
- Length: 63.79mm
- Width: 26.42mm
- Height: 5.5mm
- Weight: 9 grams
- Working temperature: 0 to 50 ºC
- Storage temperature: -40 to 60ºC
- Communications: ANT+, Bluetooth