Under-inflation Surveys have shown that at least 25% of car tyres are under-inflated by more than 10%. Driving on under-inflated tyres is one of the primary causes of rapid shoulder wear and premature tyre failure. Over inflation may also result in un-expected vehicle handling and premature tyre wear. Overloading By overloading cars and light vans it is likely to put excessive strain on tyres resulting in excessive over heating which in turn leads to more rapid wear and a greater susceptibility to impact damage. All of which can contribute to premature tyre failure.

Speeding Tyres are designed to withstand the demands that sustained high speed driving puts upon them, particularily in terms of heat generation. Tyres in good condition and correctly inflated will withstand this heat build up at their maximum rated speeds. However, if inflation pressures are significantly below those recommended then excessive heat will be generated, and in consequence wear will be accelerated and deflection will be greater with the risk of premature, and sometimes catastrophic failure.