4iiii PRECISION 3+ Left-Side Powermeter - Factory Install Compatible Left Crank:Shimano - Ultegra FC-R8000 Backed by our 3-year warranty

Backed by our 3-year warranty and an IPX7 waterproof rating

With 540+ hours of battery life and an IPX7 waterproof rating

we install the power meter

the PRECISION 3+ features  Apple Find My technology

With the Factory Install process

4iiii PRECISION 3+ Left-Side Powermeter - Factory Install Compatible Left Crank:Shimano - Ultegra FC-R8000 Backed by our 3-year warrantyThe 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