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a Mountain Bike World Champion
we install the dual-sided power meter
The 4iiii PRECISION 3+ Powermeter is the ultimate combination of accuracy
this dual-sided crank based power meter provides the comprehensive data you need to unlock your potential
Pair the Viiiiva with a 4iiii power meter to seamlessly link external output (Watts) and internal response (bpm)
4iiii PRECISION 3+ PRO Dual-Sided Powermeter - Factory Install Select Your Crank Model:Shimano - Ultegra FC-08 a Mountain Bike World ChampionThe 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