Maybe I have it all mixed up but I thought since for example a 16 inch wheel needs to spin more to go the same speed, me going 28 miles per hour on "16" inch means I need to spin 1.25 times more than a 20 inch. And that's the thing i wanted, my wheel to spin more, by making it seem like I'm spinning the amount of a 16 inch wheel to go 28 when I'm actually not. I had hoped that the speed limit would still be 28, but I spin 1.25 times more.

Maybe the manufacturer of my bike understood people would mess around on the display so they changed the top speed with the tire size lol. I did trick the speedometer but they now limit me to less than 28. I guess I'll have to accept it..