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Ships within 48 hours · Estimated delivery Sep 4 - Sep 9
the Viiiiva is engineered for comfort and extreme durability
the Viiiiva provides the real-time data needed to optimize performance
With the Factory Install process
The 4iiii Viiiiva is a precision heart rate monitor designed to capture the most accurate picture of your internal physiological effort
automatic terrain selection
4iiii PRECISION 3+ PRO Dual-Sided Powermeter - Ride Ready Crankset:Shimano - Ultegra FC-R8100 170mm (50/34T) the Viiiiva is engineered forThe 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
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