What is the minimum legal tread depth for tyres on cars?

The minimum legal tread depth for tyres on cars is 1.6 mm. This standard is established to ensure adequate grip and safety on the road. With a tread depth of 1.6 mm, tyres are better able to channel water away, reducing the risk of aquaplaning and improving overall traction, particularly in wet conditions.

Maintaining this legal minimum helps to ensure that vehicles can stop effectively and maintain control, contributing to safer driving conditions for both the driver and others on the road. It's important to regularly check and monitor the tread depth of tyres, as worn tyres can severely compromise safety.