A lot of times with floor boards there is a brake extender to put the push pedal at the front of the floor board. Maybe this fllor board was designed as a universal to fit multiple bikes.:?:?:?:?:?:?Just my thoughts.
Hi Spider, the original Markland boards back in the day, had a heel peg with them that allowed for better control of the brake. They didn't come with the fender washer in the picture, I added that to keep my boot off the paint work. I don't think the ones you buy today has this peg.