There is a comic called "Aitsu To Lullaby" in Japan and is popular with riders very much.
The reason is because a story relates to a motorcycle.
And the main character rides on Kawasaki Z2.
A motif of this machine is the Z2.

"Aitsu To Lullaby"

In addition, the red & white says "Kouhaku" in Japan and is a sign of good luck.

'Aitsu To Lullaby'.
'Aitsu' is 'girlfriend'.
'Aitsu To Lullaby' is 'Lullaby with girlfriend'.