4iiii Precision 3+ Powermeter Shimano Ultegra FC-R8100 Apple Find My

So you always know where your bike is in the event of loss or theft, this power meter, equipped with Apple Find My, allows you to locate your bike on a map from an iPhone, iPad or Apple Watch. A real bonus built into an accessory that’s more than useful for a courier.

This 4iiii Precision 3+ Powermeter effectively lets you track all your training data. The power meter is lightweight, waterproof and has a good battery life; it promises a margin of error of 1% thanks to the three strain gauges measuring all the forces of your pedal stroke. Available in all crank lengths, this accessory is perfect for managing your training sessions to help you progress towards a goal.

Technical specifications:

- Shimano Ultegra FC-R8100 left crank length: 165mm, 170mm, 172.5mm, 175mm
- Weight: 9 grams per sensor
- Accuracy: ±1%
- Battery type: CR2032
- Battery life: up to 800 hours
- Water resistance rating: IPx7
- Cadence range: 30–170 revolutions per minute
- Power range: 0–4,000 W
- Height: 5.5 mm
- Operating temperature: 0–50 degrees
- Communication protocols: ANT+, Bluetooth
- Warranty: 3 years
- Brand: 4iiii