A numerical grade molded into the sidewall of a tire that estimates its expected lifespan under controlled testing conditions. A baseline rating is 100, so a tire rated 400 should theoretically last four times as long as the control tire. Lower numbers indicate softer, stickier rubber favored for performance, while higher numbers indicate harder compounds built for longevity.
These track tires have a treadwear rating of 200, so don't expect them to last more than a summer.
Treadwear ratings are assigned by the manufacturer, not an independent body, so they are only truly accurate for comparing tires within the same brand.
Also heard as
- UTQG treadwear
Related terms
Summer tire
A performance tire engineered for maximum grip on dry and wet roads in warm weather conditions.
All-season tire
A tire designed with a tread pattern and rubber compound meant for year-round use in moderate climates.
Winter tire
A specialized tire engineered with a soft rubber compound and deep sipes to maintain traction in freezing conditions.