Honda CB650RA 2020 Owner's Manual page 30

Instruments
To reset the tripmeter B, average fuel
mileage B, fuel consumption B, average
speed B and and elapsed time B (these are
based on tripmeter B) together, press and
hold the button while tripmeter B is
SET
displayed.
Average fuel mileage B
Fuel consumption B
Average speed B
Elapsed time B
28
(Continued)
Tripmeter B
When they are reset, reset display appears at
each indication. Then, the display returns to
the last selected indication.