Disclosed herein is a pneumatic vehicle tire comprising a pair of sidewalls and a ground engaging surface extending therebetween, at least one of the sidewalls bearing an outwardly visible inflation-indicating ring and a pair of sighting rings. At least a first portion of the inflation-indicating ring being positioned relative to the ground engaging surface, wherein to the ground engaging surface, wherein when the tire becomes incorrectly under-inflated, the first portion is arranged to change from one position to another visibly distinct position when viewed along a sight line indicated by a pre-determined relationship between the pair of sighting rings.