Entering the Crank Length with the Forerunner 945 and fēnix 6 Series

The crank length is often printed on the crank arm.

1. Rotate the pedals a few times in order to activate the Rally system.
2. Hold or MENU.
3. Select Settings > Sensors & Accessories > Power.
4. Select your sensor.
5. Select Crank Length.
6. Enter the crank length, and select .