Tyre tread helps your vehicle maintain grip, particularly when the road is wet. The law sets a minimum tread depth, but being just above that minimum does not automatically make a damaged or unsuitable tyre safe.
The legal minimum for cars and light vans
For cars, light vans and light trailers, the UK’s Highway Code requires a minimum of 1.6 mm tread across the central three-quarters of the tread breadth and around the entire circumference. Different requirements can apply to motorcycles, larger commercial vehicles and passenger vehicles.
See the official Highway Code Annex 6 and GOV.UK vehicle safety checks for current rules.
What about tyre damage?
Tread depth alone is not enough. Check for cuts, bulges, exposed cords, uneven wear, objects embedded in the tread and signs of repeated under-inflation. Tyres also need the correct pressures and must meet the vehicle’s specification.
How to check tread
Use an appropriate tread depth gauge and check several points around the tyre in the relevant tread area. A simple coin test is not a substitute for an accurate gauge or a professional inspection. If the tread is approaching the minimum, plan replacement rather than waiting for a journey to be interrupted.
Uneven wear should be investigated
Wear on one shoulder, cupping or unusual tread patterns can indicate pressure, alignment, suspension or other problems. Replacing a tyre without addressing an underlying cause may lead to repeat wear.
Need a replacement?
Send the full tyre marking, vehicle details and location. A coordinator can check whether suitable mobile replacement options are available.
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