4iiii Pm Precision, Shimano Ultegra, R8000, Nds tire lever Simple insert your skewer through

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

Compatible with Look Keo road pedal systems

100% Waaterproof

Oval inner chainring engineered for smooth power delivery and traction

Be Seen at A Distance: Long rear beam projection technology greatly increases the effective visibility range

4iiii Pm Precision, Shimano Ultegra, R8000, Nds tire lever Simple insert your skewer throughFeatures 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