4iiii precision pro powermeter shimano 105 fc r7000

Description

FEATURES  Light Weight - 4iiii makes the lightest power meter on the market. We’re committed to helping you get faster, one gram at a time. Accuracy In 3D-  Not everyone has the perfect pedal stroke. With +/- 1% accuracy, 4iiii is the only crank-based power meter to use 3 strain gauges to