Together with the Polar S625X, S725, S725X, S720i, S710i or S710 the Power Output Sensor measures the actual, average and maximum power values. With the Power Output Sensor you can analyze the L/R Balance(balance between left and right foot) and Pedaling Index (shows how even the power is distributed during one crankarm rotation). The Power Output Sensor also measures cycling speed, distance and cadence. You can easily download the data to the Polar Software for further analysis.
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