4iiii Precision 3+ RX810 GRX NDS left crank with power meter

Unlock your potential with the 4iiii Precision 3+ GRX power meter. This left-side crank delivers pro-level, +/-1% accuracy and an incredible 800-hour battery life in a package that adds only 9 grams. Its automatic terrain selector ensures responsive data on any surface, from smooth tarmac to rugged gravel. For ultimate peace of mind, it features integrated Apple Find My support to track its location. With an IPX7 waterproof rating and a 3-year warranty, it´s the reliable, lightweight training partner for every ride