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    4iiii - Left Side Precision Power Meter

    $669.00
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    4iiii - PRECISION POWER METER

    Whether you’re a pro or simply training hard, PRECISION powermeters deliver industry-leading accuracy, highly dependable cadence data, 3D powermeter 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 Ride Ready comes installed on a new Shimano left crank arm (105, Ultegra, or Dura-Ace). These crank arms will fit bottom brackets using the Hollowtech ii interface.

    Features

    • 3D powermeter technology (patent pending) measures tri-axial strain on your crank arm
    • 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

    Specifications

    • Weight: 9 grams
    • Data accuracy: +/- 1% error margin
    • Battery life: 100+ riding hours on 2032 coin cell battery

    How does it work?

    Choose the  Shimano left crank arm you want at checkout, and you’ll receive it with PRECISION installed.

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