I posted on Tire Sizes a long time ago, maybe this is good time to revisit the issue.  Different brands of the same size tire have inflated dimensions that vary significantly in diameter and probably width too.   I compared 5 or 6 brands and models that had different uninflated diameters (like nearly an inch).   I was very surprised when the tire with the smallest uninflated diameter became the largest when inflated.   The point is to be very careful when changing to a different tire.  Measure the inflated dimensions and compare them before you do a retract test.  You may save doing some glass work or worse.

Steve Colwell   Legacy