Great Britain Theory Test Coach
Vehicle safety and loadingQuestion 364 of 424

What is the legal minimum tyre tread depth for a car?

  1. 1.6 mm
  2. 1 mm
  3. 2.5 mm
  4. 3.0 mm
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Correct answer: 1.6 mm

A car tyre must have at least 1.6 mm of tread across the central three-quarters of the tyre, all round it.

Source: The Highway Code (Department for Transport, GOV.UK), Annex 6. Vehicle maintenance, safety and security, Vehicle maintenance

Practice vehicle safety and loading

Questions last reviewed: 18 October 2026