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4iiii PRECISION Shimano R7000 Power Meter

Josh Matthew November 29, 2019
5.00 out of 5 based on 3 customer ratings
(3 customer reviews)


One of the most accurate, lightweight and affordable power meters available!

Clear selection


4iiii PRECISION Shimano R7000 Power Meter

If you currently have a Shimano R7000 crankset on your road bike, this 4iiii PRECISION Shimano R7000 Power Meter is for you! This 4iiii power meter replaces your current left-side crank arm. It measures the power that is generated by your left leg and doubles this value to determine your total watts.

4iiii uses patent pending 3-D tri-axial strain gauge technology in order to achieve +/- 1.0% accuracy, which places it among the most accurate power meters available. When it comes to weight, there is no equal. The 4iiii PRECISION sensor weighs a mere 9 grams – practically nothing! In addition, the power meter features dual ANT+ and Bluetooth SMART compatibility so you can use it with a wide range of devices.

In short, the 4iiii PRECISION Shimano R7000 Power Meter is one of the most accurate, lightweight and affordable direct force power meters available!



Most Affordable DFPM

At only $349, the 4iiii PRECISION R7000 is one of the most affordable, ready to ride direct force power meters available.

High Level of Accuracy

The PRECISION is accurate to within +/- 1.0%. This compares to average accuracy of +/- 1.0-2.0% for most other power meters.

Lightest Power Meter

At only 9 grams of added weight, the PRECISION is the lightest power meter you can buy!

Easy to Install

Installation is a breeze. Just swap it out for your current left-side crank arm and you’re ready to ride! Installation takes minutes…not hours.

ANT+ & Bluetooth SMART

The power meter transmits data via both ANT+ and Bluetooth SMART so you can use it with a wide range of devices.


The power meter is available in the following crank arm lengths: 165 mm | 170 mm | 172.5 mm | 175 mm



The 4iiii power meter is compatible with all Shimano Hollowtech II road cranks. Please contact us if you have questions on compatibility.


In the Box

  • 4iiii PRECISION Shimano R7000 Power Meter
  • CR2032 battery
  • Quick Start guide


4iiii PRECISION Shimano R7000 Specs

Name4iiii PRECISION Shimano R7000
Bike TypeRoad
Location of Power MeasurementCrank Arm
Left or Both Legs MeasuredLeft only
Independent Left/Right MeasurementNo
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 1.0%
Weight9 grams (added weight)
Battery TypeCR2032 coin cell
Battery Life100 hours
Method of Cadence MeasurementAccelerometer
Warranty1 year


3 reviews for 4iiii PRECISION Shimano R7000 Power Meter

  1. Avatar

    Patrick (verified owner)

    I am amazed. This has to be the lightest and cheapest power meter in the world and yet it gives me good clean data, without any problems. It took me three minutes to order from power meter city, arrived within five days and I had fitted it within just five minutes. I am very satisfied with this purchase and recommend this to anyone looking for a power meter.

    • Power Meter City

      Power Meter City

      Hi Patrick. Thank you for leaving us a review on your 4iiii R7000. We hope you continue to enjoy it and are here if there is anything else we can do!

  2. Avatar

    Jared (verified owner)

    4iiii provide the best bang for your buck when it comes to power meters! I’ve been using the precision left side crank arm power meter for a few weeks and the experience has been great. Powermetercity’s shipping was fast and easy and I saved ~$50 on shipping instead of going directly through the vendor.

    • Power Meter City

      Power Meter City

      Hi Jared. Thank you for your review. We really like these units and are glad you’re enjoying it. We appreciate your business and are here if you need anything else!

  3. Avatar

    Ricky (verified owner)

    This power meter works like a charm. Installation and setup was a breeze. Have used the power meter on several rides and the results seem to be consistent with numbers from the PowerTap I use on my other bike. I use this on a bike for which I have multiple wheelsets and tire sizes. It really works great and allows me to access power data whether I am on the road or riding gravel. I highly, highly recommend this power meter.

    • Power Meter City

      Power Meter City

      Hi Ricky. Your review put a smile on our face! We’re happy to hear your 4iiii R7000 is getting the job done nicely for you. Keep up the good work!

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