4iiii PRECISION 3+ Ride Ready Ultegra FC-R8000 Power Meter Left Arm

The 4iiii PRECISION 3+ is a left-arm power meter that comes pre-installed on a Shimano Ultegra FC-R8000 crank arm, ready to mount and ride without additional setup. It delivers +/-1% power accuracy and integrates Apple Find My support, allowing riders to locate the unit if it goes missing.

The meter ships in a smaller and lighter form factor than its predecessor, with an automatic terrain selector that adjusts calibration for varied riding conditions. Battery life reaches up to 800 hours, reducing maintenance interruptions, and the unit is backed by a 3-year warranty for long-term reliability.

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