Safe Tyre Tread

Having less tread than required on your car is not just illegal, its unsafe!

The minimum amount of tread, which provides a secure grip, is around 3.5mm - about the depth of a match-head
Less than 1.6mm is an offence by law
In wet conditions, 3.0mm or less means that your traction and stopping power is greatly reduced
When driving in snow, traction can be compromised at 4.75mm tread depth.