About the GSC 10
Cadence data from the GSC™ 10 is always recorded. If there is no GSC 10 paired, GPS data is used to calculate the speed and distance.
Cadence is your rate of pedaling or “spinning” measured by the number of revolutions of the crank arm per minute (rpm). There are two sensors on the GSC 10: one for cadence and one for speed.
Parent Topic: Installing the GSC 10