I was just curious as to what the overall diameter of my Kenda Bearclaw HTR’s were ON the bike at the current pressure.

I have 26×11-14 HTR’s on the rear and at 4.5psi they measured 25.5". At 8psi they measured 26". I used a level placed on top of the tire and then measured from the ground through the center of the hub up to the level, which was level.

I’m assuming at 4.5psi the tire will "grow" at speed. Wonder how much it grows, say, at 60mph….?