6.8K views · 38 reactions | Learn the tire-testing trick that you can do on a budget. The tread is the rubber on your tire that touches the road. So if you stick an upside-down penny in your tread rib and you can see Lincoln’s head… you’ve got a flat tire. To be extra prepared, consider buying a plan that supplements your car insurance like Roadside Assistance. Learn more at https://drct.auto/473b3zK or by visiting a Direct Auto location near you. | Direct Auto Insurance | Facebook