These bikes aren't cruisers... you don't need to have both feet on the ground. The N1K doesn't have enough ground clearance as it is, lowering it will only make it more dangerous in a sharp turn. I'm 5' 8" with a 29" inseam and I can only get my toes down. If you're short, you just need to learn to adapt and not get yourself into situations where you can't reach the ground. I learned my lesson after dropping my first bike twice because I stopped over a dip and couldn't reach the ground before the bike was leaned too far over for me to hold up. That was 9 years ago... I learned to pay attention and identify and avoid trouble spots. Toes down are all you need...
BlackSheep, had to quote this as what you said is correct, right, and how its done.
The "Both feet flat on the ground" is an old Harley campaign, and sales tool.
It was invented back when Harley had its sportster and Honda released its first cb750. Obviously, it was 40 years ahead of what HD had. However, due to Honda using real suspension components, its seat height was 31 inches..
Instead of modernizing, Harley decided to make this seat height the end all, do all.
Did it work? LOL 40 years later, the sales campaign became carved in stone.
No big deal except lowering a machine ruins the handling, cornering clearance, and is usually done in such a half assed way, it ruins the suspension.
Sadly, knowing this , and mentioning this, will not sway the opinion of 99.999999999% of those who believe you need "both feet down, flat footed." They will pay good money to ruin a sportbike.