What’s the minimum depth of tread required over three-quarters of the breadth of a lorry tyre?

Explanation: Tyres are your lorry's only contact with the road. It's essential that this contact gives you the grip you need to control your vehicle at all times. For that reason, goods vehicles must have a tread depth of at least 1 mm across three-quarters of the breadth of the tread and in a continuous band around the entire circumference.

Category: Vehicle Condition

References: The Official DVSA Guide to Driving Goods Vehicles: Section 2, The Official DVSA Guide to Driving Goods Vehicles: Section 4