4iiii PRECISION 3+ PRO Dual-Sided Powermeter - Ride Ready Crankset:Shimano - Ultegra FC-R8100 170mm (50/34T) automatic terrain selection

automatic terrain selection

Elevate your riding experience with dual-sided power for our most advanced features and an in-depth look at your data

the Viiiiva is engineered for comfort and extreme durability

the Viiiiva provides the real-time data needed to optimize performance

and an industry-leading 800-hour battery life

4iiii PRECISION 3+ PRO Dual-Sided Powermeter - Ride Ready Crankset:Shimano - Ultegra FC-R8100 170mm (50/34T) automatic terrain selectionThe 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