The tyre must not have on its external perimeter, e.g. in the area of tyre crown, side, and tyre bead
a) cracks and damages, that invade textile-cord carcass; although its exposure is not a defect,
b) cracks, that expose its textile-cord carcass; although its damage is not a defect,
c) cracks and damages that expose textile-cord carcass or invade it.
