4iiii PRECISION 3+ Ride Ready 105 FC-R7100 Power Meter Left Arm

The 4iiii PRECISION 3+ Ride Ready is a left-arm power meter pre-installed on a Shimano 105 FC-R7100 crank arm, ready to install straight out of the box. It measures power using 3D tri-axial strain technology for 1% accuracy and includes Apple Find My support for locating the unit when not in use.

The unit connects via ANT+ and Bluetooth for broad compatibility with head units and training apps, and delivers up to 800 hours of battery life from a single coin cell. An automatic terrain selector adjusts calibration across conditions, and every unit is backed by a 3-year warranty.

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