A rear lighting device for a motorcycle is disclosed. The rear lighting device
is mounted on a rear fender that covers a rear wheel of the motorcycle. The rear
lighting device includes a flasher stay that is mounted on the rear fender through
a stay bracket, and flashers mounted on right and left mounting end sections of
the flasher stay. The flasher stay includes a mounting plane surface section provided
in a generally central area of the flasher stay along its length direction and
right and left end sections on both sides of the mounting plane surface section.
The mounting plane surface section is defined by a plate like section that is generally
flat in a direction perpendicular to the length direction of the flasher stay,
and the mounting plane section extends generally horizontally as the flasher stay
is mounted on the stay bracket.