Stages GRX RX810/820 Power Meter Left

The Stages Gen 3 Stages Power L GRX RX810 power meter integrates onto a non-drive-side Shimano GRX RX-810 crank arm. It provides consistent and accurate power measurement through automatic temperature compensation. This system is compatible with all Shimano GRX cranksets, offering data for various cycling disciplines.

Calibrated individually, the power meter ensures a +/- 1.5% accuracy level in all conditions. Its low-profile design adds minimal weight to the crank arm. Key features include accelerometer-based cadence measurement, wireless firmware updates, and an LED indicator for battery status.

Quick Facts

Feature	Specification
Accuracy	+/- 1.5%
Weight Added	15g to base crank arm
Battery Life	200+ hours (CR2032 coin cell)
Power Range	0 to 5000 Watts
Cadence Range	10-220 rpm
Compatibility	Shimano GRX cranksets, ANT+, Bluetooth Smart devices