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Pairing a Bike Sensor to the Forerunner 620

The Garmin Speed/Cadence Sensor (GSC 10), Bike Speed Sensor (BSS), and Bike Cadence Sensor (BCS) will pair to the Forerunner 620 when the watch is in the Ride activity profile.

Select the Ride Profile

Select (bottom left).
Select the screen to unlock the device.
Select .
Select Settings.
Select Activity Profiles.
Select Ride.

Pair Sensors

Select (bottom left).
Select the screen to unlock the device.
Select .
Select Settings.
Select Sensors.
Select Add Sensor.
Select Bike Sensor.
Activate your Sensors by spinning the crank and tire.
Once the watch displays "Bike Sensor Found", the watch and sensor(s) are paired.
- If the sensors are not found, this may mean the sensors are not properly installed on your bike. For installation overview please see, Installing the Speed and Cadence Sensor.

Now that your sensors are paired, the watch will automatically recognizes the sensors during your next rides. Whenever you change the battery in your bike sensor(s), the above steps will need to be repeated in order to pair to the watch again.