4iiii Precision3+ PRO Powermeter

4iiii PRECISION 3+ PRO Power Meter

The 4iiii PRECISION 3+ PRO Power Meter is our most advanced power meter yet—smaller, lighter, and more powerful, now with Apple Find My support for added peace of mind. Trusted by professional athletes and dedicated weekend riders, it delivers the accuracy and reliability you need to train smarter and ride stronger.

Whether you’re chasing a Kona qualification, grinding it out on virtual training platforms, or hunting your next local KOM, the PRECISION 3+ PRO gives you the data to unlock your full potential. With ±1% accuracy, automatic terrain selection, and an industry-leading battery life of up to 800 hours, it’s built to perform season after season.

Backed by 4iiii’s 3-year warranty, this is a power meter you can rely on for the long haul.

Key Features & Benefits

• ±1% power accuracy for reliable training data

• Up to 800 hours battery life

• Apple Find My compatible for easy tracking

• Automatic terrain selector for improved data accuracy

• Compact, lightweight design

• ANT+ and Bluetooth Smart connectivity

• 3-year industry-leading warranty

Easy Installation & Setup

Your ride-ready PRECISION 3+ PRO Power Meter installs easily using the standard Shimano crank installation process. Simply pair it with your cycling computer or head unit, and you’re ready to ride with power.

For added security, connect the power meter to the Apple Find My app on your iPhone or iPad and track its location anytime.

Thank you for choosing Paceline. We aim to ensure your complete satisfaction with your purchases. However, if you need to return an item, please review our policy below:

Return Window:
You have 14 days from the date of purchase to initiate a return request.

 

Return Process:

1. Please use this link to submit your request with your order number and reason for return. 

2. You will receive an email confirmation from us, and we may request supporting documents/photos for assessment.

3. Provide a copy of your order receipt with the returned item

4. Post your package back to us after our assessment.

5. Once we receive your return, and everything is in order, your refund will be processed within 10 working days. 

 

General Terms

- Use the shipping method of your choice for returns. Paceline is not liable for any damage or loss of returned packages.
- We recommend insuring any package you return through the carrier and keeping your tracking number until the refund is processed.
- Credit card refunds will be issued to the original card used for purchase, while PayPal refunds will be credited to the respective account.