4iiii PRECISION 3+ PRO Dual-Sided Powermeter - Factory Install Select Your Crank Model:Shimano - Ultegra FC-08 this crank-based power meter provides

this crank-based power meter provides the consistent data you need to unlock your potential

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

you send us your compatible drive-side crank arm and we install the PRECISION 3+ PRO Powermeter to complete your dual-sided system

Whether you’re prepping for a local Gran Fondo or aiming for a new FTP personal best

4iiii PRECISION 3+ PRO Dual-Sided Powermeter - Factory Install Select Your Crank Model:Shimano - Ultegra FC-08 this crank-based power meter providesThe 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