Tread Depth Legal Limit

In the UK, the legal minimum tread depth is 1.6mm across the central three-quarters of the tread breadth, around the entire circumference of the tyre. This applies to cars, light vans, and trailers. For motorcycles over 50cc, the limit is 1mm. Heavy goods vehicles and buses must have at least 1mm across three-quarters of the breadth. Penalties for non-compliance include fines up to £2,500 and 3 penalty points per tyre. A vehicle with four illegal tyres could face a £10,000 fine and 12 penalty points.