14.25, actually. I look over mine, but there is math involved. The factors are:
Owner height
Owner torso length, commonly guesstimated after learning the owner's inseam
Seat on bike, as some drop from stock height, some go up
My factors are:
5' 11"
Inseam 33"
Mustang seat, which is about a 1 to 1-1/2" drop from stock