Couldn't even go 12 mph huh?
Toivo, 11.5mph was pushing it as it was!! My body is lighter doing it, but oh my....legs are moving!
I was going Grandpa Lefty speed ;)
I thought it’d be fun to do, hope my body doesn’t break, lol!
I hear ya! I bumped it up to 10 mph for a half minute the other day and almost flew off the treadmill! (Of course, that's at my full 200 pounds)