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Correct!

What's the legal minimum depth of tread for a car tyre?

1.0 mm
1.6 mm
Correct answer
2.5 mm
4.0 mm

DVSA theory test explanation

Tyres must have enough depth of tread to give them a good grip on the road surface. The legal minimum for cars is 1.6 mm. This depth should be across the central three-quarters of the breadth of the tyre and around the entire circumference.

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