Originally Posted by
SoSmellyAir
I wonder, since most (new) tires have a thicker tread than its sidewalls (for wear and puncture protection), would that not cause the tread to be slightly less flexible than the sidewalls, such that the circle is flatter or less curved at the top?
I think most tyres casings wrap the bead then come back to overlap on the tread area, so that's 50% more structure which would result in less stretch at the circumference.