The floor where the end of the tape measure is is 8 to 10 inches below the step that you stood on to make the mark.
So you have just admitted to being a short arse, caught yourself out.
You lot are just intimidated by the raw Harley power.
I was at a drag strip today and ran a 8.6 without even trying, I would post proof but unfortunately I don’t know how so you are just going to have to accept what I say.