Honda CB500XA Owner's Manual page 48

Indicators
(Continued)
REV Indicator
Comes on briefly when the ignition switch is turned to the (On) position.
●
Initial setting
REV indicator blinking fastest RPM: 8,750 r/min (rpm)
REV indicator blinking interval RPM: 250 r/min (rpm)
Blinking
Blinking fast
Blinking fastest
To set the shift up rev setting:
To set the shift width setting:
44
REV indicator
(P.34)
(P.36)
r/min (rpm)
8,250 r/min (rpm)
8,500 r/min (rpm)
8,750 r/min (rpm)