4iiii Pm Precision, Shimano Ultegra, R8000, Nds tire lever Oval inner chainring engineered for

Oval inner chainring engineered for smooth power delivery and traction

App Compatibility – Works with My E-Training

Specifically designed for Shimano direct-mount derailleurs

black anodised tip

Simple insert your skewer through your fork and 15mm fork mount

4iiii Pm Precision, Shimano Ultegra, R8000, Nds tire lever Oval inner chainring engineered forFeatures Light Weight At only 9 grams the PRECISION 3+ Powermeter weighs about the same as a sip from your water bottle. Our goal is to help you get faster, not to slow you down. Battery Life Our impressive long lasting battery life means you wont have to worry about frequent battery changes. 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 measure all