Originally Posted by
KerryIrons
To sum it up, those kinds of cuts are not a safety issue. Bulges of just about any size represent damage to the casing and cause to at least boot the tire if not replace it altogether.
The bulge is very small and existed when I installed the tires. I am thinking it was a defect, inside of tires were clean (no sign of damage) when installed and center ridge (manufacturing remnant) was still intact. I guess I should pull the tire and double check.