4iiii Precision Dual sided

4iiii Precision Dual Sided Power Meter (Shimano)
  • Editor Rating
  • Rated 5 stars
£1100 to £1250
  • 100%

  • Ease of Installation
  • Value for Money
  • Sides? 50% = Single / 100% = Dual
  • Bluetooth Connectivity (100% = Yes)
  • ANT+ Connectivity (100% = Yes)
  • Battery Life (scale from 50 - 200 hrs)
  • Ease of Battery Change

Introduction

The 4iiii Precision power meter has been reviewed by Tristan Haskins for Power-Pedals.com. This is the dual sided power meter from 4iiii with strain gauges hidden away in both LEFT and RIGHT crank arms. Having two isolated power meters means the 4iiii Precision Dual accurately measures left and right power balance with true bi-lateral accuracy. It also provides a genuine total power output (not simply doubling power from one side).

Product Summary

Ridden by the pros, this is the top specification PRECISION PRO dual-side power meter. The Precision PRO dual has all the benefits of the 4iiii Precision crank arm model, eg. superb accuracy, superlight, ANT+ & Bluetooth data broadcast and 4iiii 3D power meter technology. On top of all that is provides a bi-lateral assessment of power balance across the left and right wattage. Perfect for those who need specific power output from each crank side, or anyone who simply wants the best power meter on the market.

The PRECISION PRO Ride Ready comes pre-installed on a new Shimano DURA-ACE FC-9000 series crankset you purchase from us.

Pros

Cons

Who are they for?

More details to follow very soon …

Method of Installation

More details to follow very soon …

Tools Required to fit this Power Meter

  • More details to follow very soon …

Alternative Power Meters

Other power meters offering bi-lateral power metering of the left and right legs are the pedal based systems from Powertap and Garmin and the combination crankset from Rotors, the 2INPower. The 2INPower has a strain gauge in the left crank arm and the other independent sensor in the bottom bracket axle.

2INPower crankset bi-lateral power measured from axle and crank arm

Powertap P1 pedals bi-lateral power measured from each pedal axle

Garmin Vector 2 pedals bi-lateral power measured from each pedal axle

Check Prices

Please use the buttons below to check the best prices with the best cycling superstores. Thank you

Check the price of this power meter at Evans CyclesCheck prices for this power meter at Probikekit

Technical Specification

  • 3D power meter technology (patent pending) measures tri-axial strain on your crank
  • Accurate, consistent data
  • Lightweight, compact design
  • Battery status indicator via 4iiii app
  • Compatible with ANT+, Bluetooth Smart head units, smartphones, and other 4iiii products
  • User-friendly app and configurable rider compensation scale factor
  • Easy setup and maintenance
  • Over-the-air upgrade capability for adding new features and updates
  • Specifications
  • Weight: 25 grams (power meter only)
  • Data accuracy: +/- 1% error margin
  • Battery life: 100+ hours on 2032 coin cell battery
  • Battery status indicator: Alert at 15% battery power

Photo Gallery

The range of 4iiii Precision Power Meters

External Videos

coming soon ….

External Resources

The purpose of Power-Pedals.com product presentations is to give the visitor a summary overview of each power meter. They are NOT intended as an in-depth technical review, more a summary providing essential top level features, functions, pros and cons. Further information can be found at these links to other external reference sites.