Traction, Tyres and Brakes
What is the legal minimum tread depth of the contact band on a passenger car?
- A 0.8 mm
- ✓ 1.6 mm
- C 3 mm
- D 5 mm
Why this is the correct answer
The tread of a passenger car must have grooves at least 1.6 mm deep. Below that limit the tyre is illegal and loses grip, especially in the wet.
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