Ducati MONSTER 821 Owner's Manual page 142

Deletion is one single command that erases all stored
laps.
After deletion, the Laps 01 to 30 are displayed with all
parameters showing an indefinite value "–" (time = -' -
-'' - - , rpm = - - - - - , speed = - - - ).
To exit the menu and go back to previous page, select
EXIT and press button (4).
LAP DATA
TIME: -'--"--
LAP 01
SPEEDmax: --- km/h
RPM max: --- rpm
ERASE ALL
EXIT
Fig. 86
141