Why You Need To Measure Tire Tread Depth A tire with only 3/32" or 4/32" of tread may be allowed on the road legally, but that doesn't mean it's ideal, especially in wet or winter conditions. The ...

Stick a tread-depth gauge (about $5 at auto-parts stores) into each of the grooves on all four tires, as shown in the photo below. Then check how many inches of usable tread remain and match your ...

According to Vigillo, a total of 5,203 tire violations were written up during RoadCheck 2016, and 2,222 of those were tread depth violations (less than 2/32 inch), almost 43%. If you add the ...

If the outer band of the 20p coin is visible whenever you check the tread, your tread depth may be illegal and you should have them checked by a specialist. A tread depth gauge is also good.

How to check your tyre tread depth with 20p coin hack To avoid hefty fines and penalty points, the experts advise taking a 20p coin to see if their tyres meet the legal requirement.