This is an example of a tire that’s actually
wearing pretty good. You’ll notice right here and it may be hard to see, but these are called tread blocks, and these actually determine when the tire gets level with the edge of this tread, when it gets level with this part right here, that’s called two 30 seconds and a legally failed state inspection for the state of Virginia. You want your tire to actually have quite
a bit of swipes left in here. What this does is allow for water evacuation. When you’re driving across wet weather
conditions, or snow, or any kind of ice, things like that, if the tire is level all the way across with none of these swipes available, you’re basically gliding across the surface of the road, instead of biting into it allowing the water to evacuate. So the swipes allow the water to come in
here, and out the outside swipes. So this is actually pretty good example of a tire that’s worn very well. You can tell they’re keeping the correct tire
pressure because on the next demonstration I’m gonna show you, that you have back tire wear. If they’re
over-inflated, or under-inflated and we’ll show you an example of that next.