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4iiii PRECISION Shimano Ultegra R8000 Power Meter

Josh Matthew April 2, 2020
5.00 out of 5 based on 1 customer rating
(1 customer review)


4iiii’s PRECISION power meter combined with Shimano’s Ultegra R8000 groupset

Clear selection


4iiii PRECISION Shimano Ultegra R8000 Power Meter

Introducing the all new 4iiii PRECISION Shimano Ultegra R8000 Power Meter. 4iiii has combined their patent pending 3-D tri-axial strain gauge technology, measured at +/- 1.0% accuracy, with Shimano’s best of breed Ultegra R8000 groupset. The result is one of the lightest, most affordable and most accurate direct force power meters available.

The PRECISION determines your total power based on the force that is generated by your left leg. This left-only design allows for a power meter that is lightweight and easy to install. Specifically, the power meter adds only 9 grams to your crank arm and is installed in about 10 minutes. In addition, the PRECISION is compatible with both ANT+ and Bluetooth SMART devices. This means you can use it with your favorite bicycle computer, watch or smart phone.



Most Affordable DFPM

The 4iiii Podium is one of the most affordable, ready to ride direct force power meters available.

High Level of Accuracy

The Podium 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 7.5 grams of added weight, the Podium 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.


The Podium features a lithium ion rechargeable battery with an impressive 60 hours of battery life.


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 Ultegra R8000 Power Meter
  • CR2032 Battery
  • Quick Start guide


4iiii PRECISION Shimano Ultegra R8000 Specs

Name4iiii PRECISION Ultegra R8000
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
Warranty3 years


1 review for 4iiii PRECISION Shimano Ultegra R8000 Power Meter

  1. Avatar

    R. Gannon (verified owner)

    Works perfectly! No issues with the unit and super easy to use. I’m using with Wahoo bolt and is seamlessly easy. Had an initial fitting issue with frame clearance but Josh was super helpful and I was up and running same day. I wish more businesses were this way.

    • Power Meter City

      Power Meter City

      Hi Rob. Thanks for the review on your 4iiii PRECISION R8000. I’m glad we could get you squared away and I hope you continue to enjoy it.

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