4iiii PRECISION 3+ PRO Dual-Sided Powermeter - Factory Install - Dual Upgrade maintenance and lightweight design

and lightweight design

Built to handle everything from rough terrain and gravel to high RPM sprints

The 4iiii Viiiiva is a precision heart rate monitor designed to capture the most accurate picture of your internal physiological effort

Note: If your current left-side power meter is a PRECISION 3 (non-Find My)

4iiii PRECISION 3+ PRO Dual-Sided Powermeter - Factory Install - Dual Upgrade maintenance and lightweight designThe 4iiii PRECISION 3+ PRO Powermeter is our most advanced power meter, offering the ultimate combination of dual sided accuracy, durability, and lightweight design. Whether you are a Tour de France pro, a Mountain Bike World Champion, Ironman triathlete, a Zwift racer, or a cyclist looking to analyze left right balance to optimize your pedal stroke, this dual sided crank based power meter provides the comprehensive data you need to unlock your