Q #554 - What's the legal minimum depth of tread for car tyres?
Car tyres must have sufficient 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.
| 1 mm | |
| 1.6 mm | |
| 2.5 mm | |
| 4 mm |
