When To Buy New Tires 95%

This is the legal minimum in most regions. If your tread is this low, you must replace your tires immediately.

Insert a penny upside down into the tread. If you can see the top of Lincoln's head, your tread is below 2/32" and the tire is unsafe. when to buy new tires

For a stricter safety margin, use a quarter. If Washington's head is fully visible, your tread is below 4/32", and you should plan for a replacement soon. This is the legal minimum in most regions