The legal minimum tread depth for cars in the UK is 1.6mm throughout a continuous band comprising the central three-quarters of breadth of the tread and around its entire outer circumference.
In wet weather tyre tread grooves help to remove water from the contact patch between your tyres and the road surface meaning your car can brake, steer and accelerate properly.
Drivers whose tyres fail to comply with the minimum tread depth requirements risk a fine of up to £2,500 and three penalty points for each illegal tyre
The 20p Test
A quick and easy way to see if your tyre tread exceed the minimum legal tread depth is to take the 20p test.
Simply place a 20p coin into the main tread grooves of your tyre. If the outer band of the 20p...