Treadwear grades gives you an idea of the rate that your tires will wear down. The higher the treadwear number is, the longer it should take for the tread to wear down.

To get these ratings, a control tire is assigned a grade of 100. Other tires are compared to the control tire. For example, a tire grade of 200 should wear twice as long as the control tire.

To give you an idea of how this works, take a look at this:

15% are rated below 200

25% are rated 201 – 300

32% are rated 301 – 400

20% are rated 401 – 500

6% are rated 501 – 600

2% are rated above 600

Tags: control tire, tire ratings, tire treadwear, treadwear grades
Filed under: Cars