4iiii Pm Precision, Shimano Ultegra, R8000, Nds tire lever Be Seen at A Distance:

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

100% Waaterproof

all featuring a fast and comfortable 125 mm drop and 78 mm reach

Specifically designed for Shimano direct-mount derailleurs

Compatible with Look Keo road pedal systems

4iiii Pm Precision, Shimano Ultegra, R8000, Nds tire lever Be Seen at A Distance:Features 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