Traction, Tyres and Brakes
For safety, at what tread depth is it recommended to replace tyres, especially in wet conditions?
Reviewed on 9 Aug 2026
- ✓ Below 3 mm
- B Below 1.6 mm
- C Below 0.5 mm
- D Only when the tyre bursts
Why this is the correct answer
Although the legal minimum is 1.6 mm, for safety it is recommended to replace tyres when the tread falls below 3 mm, since at lower depths they expel water less effectively and the risk in the wet increases.
More questions on Traction, Tyres and Brakes
- What is the purpose of the grooves in the tread pattern?
- How often and in what state should tyre pressure be checked?
- What is a consequence of driving with pressure lower than recommended?
- What effect does pressure higher than recommended have on tyres?
- Pronounced wear on both edges (shoulders) of the tyre usually indicates:
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