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4iiii

4iiii

Whether you’re a pro or simply training hard, PRECISION power meters deliver industry-leading accuracy, highly dependable cadence data, 3D power meter technology capable of measuring tri-axial strain on your crank arm. Designed to be durable and lightweight, compatible with  ANT+ and Bluetooth head units, PRECISION helps you train harder and smarter. 

PRECISION left side Ride Ready comes is installed on a new Shimano left crank arm (105, Ultegra, or Dura-Ace).

Check your frame clearance before you order by downloading and printing the compatibility guide:
Letter size paper (pdf)  |  A4 size paper (pdf) 

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4 Item(s)

  1. 4iiii Precision Powermeter DURA-ACE 9000
    £549.00

    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
    Learn More
  2. 4iiii Precision Powermeter Shimano Ultegra 6800
    £469.00

    In the Box

    • 4iiii PRECISION Power Meter For Shimano Ultegra 6800
    • 2 2032 coin cell batteries
    • Quick Start guide

    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
    Learn More
  3. 4iiii Precision Powermeter Shimano 105
    £379.00

    In the Box 4iiii PRECISION Power Meter For Shimano 105 5800 2 2032 coin cell batteries Quick Start guide

    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
    Learn More
  4. 4iiii Precision Powermeter DURA-ACE 9100
    £549.00
      • 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
    Learn More

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4 Item(s)