CHECK YOUR TREAD
Less tread means less grip. The minimum legal tread depth is 1.6mm across the central three quarters of the tyre width and around the centre circumference of the tyre, but it is best to replace your tyres before they reach this advanced stage of wear. Tread wear indicators are small pieces of rubber which can be found set in the grooves. When the tyre is worn to the legal minimum, the indicators will be level with the tread and the tyre must be replaced immediately.
CHECK THE WEATHER
Wet or Dry weather effects the performance of your tyres. In fact you are twice as likely to have an accident in wet weather as to the dry. Wet weather and worn tyres are a dangerous combination; add ice or snow and roads become even more hazardous. In wet weather a worn tyre with the legal minimum of 1.6mm takes up to twice as long to stop as a new tyre with 8mm of tread.
CHECK FOR DAMAGE
Regularly inspect your tyres for signs of damage and wear. Look closely for cuts, cracks and bulges which can cause slow punctures, or cause the steel cords in the tyre to rust. Post puncture tyre sealants should only be used as a temporary measure to get home. Pre puncture sealants should be avoided.
CHECK YOUR LOAD
Your tyres bear the whole weight of both your car and its load. Overloading has the same effect on tyres as under inflation, causing premature tread wear and in extreme cases a sudden blowout.