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Question

Difficulty: EasyBasic Maintenance and Daily Checks

Under UK law, what is the legal minimum tyre tread depth required across the central three-quarters of the breadth of a car tyre?

  1. A
    1.0 mm
  2. 1.6 mmAnswer
  3. C
    2.5 mm
  4. D
    0.5 mm

Answer

1.6 mm across the central three-quarters of the breadth and around the entire outer circumference
Under UK law and Highway Code rules, the legal minimum tyre tread depth for cars is 1.6 mm. This depth must be maintained continuously across the central three-quarters of the breadth of the tyre and around its entire outer circumference.

Step-by-Step Solution

1
Identify the statutory requirement for car tyre safety under UK law.
The minimum legal tread depth for cars and light trailers is established.
Sufficient tread depth is essential for dispersing water, preventing aquaplaning, and ensuring adequate grip.
2
Select the exact legal measurement specified by the Highway Code.
1.6 mm depth across the central three-quarters of the tyre tread.
1.6 mm is the precise legal threshold across the central three-quarters of the tyre breadth around its entire circumference.

Key Concept

Statutory Minimum Tyre Tread Depth for Cars
Estimated Time:30s
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Topics

Basic Maintenance and Daily Checks

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