NHTSA Tyre Ratings - Explanation of Tread Wear Ratings
Treadwear grades are an indication of a tyre's relative
wear rate. The higher the treadwear number is, the
longer it should take for the tread to wear down.
A control tyre is assigned a grade of 100. Other tyres
are compared to the control tyre. For example, a tyre
grade of 200 should wear twice as long as the control
tyre.
Of current tyres:
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
Tyre Ratings by Manufacturer: Avon |
Bridgestone |
Continental |
Dunlop |
Firestone |
Goodyear |
Michelin |
Pirelli |
Toyo |
Vredestein |
Yokohama
Explanations of Ratings :
Traction |
Temperature |
Wear |
