For me, just opinion, anything that was on the road before my girlfriend was born qualifies as vintage. A few things after as well.
So...anything Nov. '81 or older
'79 CB750K
Somewhere in Phoenix...Damn its hot
A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed. ~ Second Amendment of the United States