4iiii Precision 3+ Ultegra 8100 left crank with power meter

Unlock your potential with the 4iiii Precision 3+ power meter, pre-installed on a Shimano Ultegra 8100 left crank. Trusted by pros, this ultra-light (9g) and compact unit delivers +/-1% accuracy and an industry-leading 800-hour battery life. Its automatic terrain selector provides responsive power data on any surface. More than just a power meter, it’s a training partner offering peace of mind with integrated Apple Find My support. With a 3-year warranty, it´s the reliable, accurate tool to chase your goals