Tire Depth Gauge?
I just saw this gauge advertised in the new CW flyer. What and why does it measure tire depth? Is this measuring tread or entire tire depth????
Forum Discussion
As a former tire salesman, these tools were indispensable. The purpose is to measure the actual depth of the tread on the tire. You put the flange across two adjoining ribs of the tread, and then push the center piece down. Then, you pull the tool back out and read the tread depth. When a tire is at 2/32 of an inch, the wear bars should be showing. At that time, the tire is legally worn out. However, I'd really recommend replacing a tire long before it is that worn for your own safety. BTW, new tires for passenger cars are typically 11/32 of an inch or more, depending on the model. Most tire stores will have a "tire tread depth" chart available on their websites.
