It is the depth of the grooves in the tyre.
If you mean tire tread depth, the minimum is 1.6mm.
You should measure tire tread depth in several locations across the tire to get an accurate assessment of wear. The best places are the grooves in the tire tread, specifically in the center, on the inside, and on the outside edges. Use a tread depth gauge or a penny to check; placing the penny with Lincoln's head down into the groove will help you determine if the tread is deep enough. Generally, a tread depth of 2/32 of an inch or less indicates that the tire needs to be replaced.
That depth present on a new tyre.
Minimum LEGAL tire tread depth is 2/32nds of an inch.
The minimum tyre tread depth in the UK is 1.6mm.
The average tread depth of a new radial tire is typically around 10/32 to 11/32 of an inch. This tread depth provides good traction and performance while allowing for gradual wear over the lifespan of the tire.
UK is 1mm
It is the rubber marker within the tread to show tread depth. It is also known as a tread wear indicator
IC 9-19-18 - Indiana does not have a legal tire depth law... Most states list 2/32 as the limit.
The minimum tire tread depth for a car is typically 2/32 of an inch (1.6 mm) in the United States. However, many safety experts recommend replacing tires when the tread depth reaches 4/32 of an inch to ensure better traction, especially in wet conditions. Regularly checking tire tread depth can help maintain optimal performance and safety.
LGV's must have a tread depth of at least 1mm across 3/4 of the breadth of the tread and in a continuious band around the entire circumference
1.6 mm is the minimum