4iiii PRECISION 3+ PRO Dual-Sided Powermeter - Factory Install Select Your Crank Model:Shimano - Dura-Ace FC-R9200 Pair the Viiiiva with a

Pair the Viiiiva with a 4iiii power meter to seamlessly link external output (Watts) and internal response (bpm)

it is built to handle everything from rough terrain and gravel to high RPM sprints

this dual-sided crank based power meter provides the comprehensive data you need to unlock your potential

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

4iiii PRECISION 3+ PRO Dual-Sided Powermeter - Factory Install Select Your Crank Model:Shimano - Dura-Ace FC-R9200 Pair the Viiiiva with aThe 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