Get precise power data for all your rides with the Garmin Rally RS210, a dual-sensing power meter pedal that provides accurate power data and can be easily swapped between road and off-road pedal bodies. The pedal-based power meter installs like any other pedal and allows for quick transfer between bikes. It's highly responsive and accurate to within +/- 1%. The removable power sensor allows for use with either Rally 110 or 210 road or off-road pedal bodies. The pedal is compatible with Shimano SPD-SL cleats and features pedal IQ smart calibration alerts. It also provides advanced cycling dynamics, including detailed data on left versus right leg balance, seated versus standing time, and power phases. The pedal has up to 90 hours of ride time on a single charge.