Vetta V30 Owner's Manual page 8

STEP 3
When the distance unit that you would like to select is displayed, remove the magnet from the wheel sensor to
set your selection. The computer will then automatically advance to the wheel size setting mode.
NOTE: If you make a selection error while programming your computer or would like to change any of your
previously programmed settings, you must remove and then reinstall the battery and start over. All settings will
return to their original default values. You can then reprogram the computer.