When I got my Wesbank statement yesterday, it was pretty obvious that the format had changed. However, it was only once I compared the statement to my accounting record that the extent of the change became apparent.
â¦Tread Depth Lea esta pgina en espaol Tread Depth Tread depth is a vertical measurement between the top of the tread rubber to the bottom of the tire's deepest grooves. In the United States, tread depth is measured in 32nds of an inch.
1 The minimum amount of tread, which provides a secure grip, is around 3.5mm - about the depth of a match-head. 2  Less than 1.6mm is an offence by law. 3  In wet conditions, 3.0mm or less means that your traction and stopping power is greatly reduced.  When driving in snow, traction can be compromised at 4.75mm tread depth.