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The 4iiii PRECISION 3+ PRO Powermeter is our most advanced power meter
With the Factory Install process
Replacement PRECISION 3+ PRO drive side power meter cap
simply swap your left-side crank and start training
a Mountain Bike World Champion
4iiii PRECISION 3+ Left-Side Powermeter - Factory Install Compatible Left Crank:Shimano - XTR FC-M9200 The 4iiii PRECISION 3+ PROThe 4iiii PRECISION 3+ Powermeter is the ultimate combination of 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 simply looking to add the structure of data to your training, this crank based power meter provides the consistent data you need to unlock your potential. Engineered to be the best affordable power meter on the market, the
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