Wheel Size And Circumference - Garmin VIVOACTIVE 5 Owner's Manual

Wheel Size and Circumference

When used for cycling, your speed sensor automatically detects your wheel size. If necessary, you can manually
enter your wheel circumference in the speed sensor settings.
The tire size for cycling is marked on both sides of the tire. You can measure the circumference of your wheel or
use one of the calculators available on the internet.
Appendix 73