It’s easy to take tyres for granted but they take a pounding with hard driving, bumping potholes and kerbs. When checking tyre pressures – at least once a fortnight and before long journeys, not forgetting the spare if you have one - check the tread depth and general condition, looking out for any cuts, lumps and bulges.
The law requires a minimum tread depth of 1.6mm across the central three-quarters of the breadth of the tread and around the entire circumference. In winter you might want to change tyres early, as research has shown tyre performance is significantly reduced below 3mm of tread depth.
TyreSafe, a not-for-profit organisation dedicated to raising awareness about the importance of correct tyre maintenance and the dangers of defective and worn tyres, has this simple 20p test. Insert a 20p coin into the main tyre grooves at several places around the circumference of the tyre and across its width. If the outer band of the 20p is visible, your tread depth may be illegal and you should have them checked by a qualified tyre specialist.
As well as the road safety issue, it could save you a fine of up to £2,500 and three penalty points for each illegal tyre.
Try the TyreSafe 20p coin test on your tyre treads