Four kinds of tread-life evidence answer different questions.
- UTQG grade: NEXEN TIRE ARIA AH7 is rated 760 A A; NEXEN TIRE N'PRIZ S is rated 700 A A on many sizes.
- Manufacturer wear test: Michelin's U.S. Defender2 disclosure reports an estimated 94,400 miles in a 2021 Toyota RAV4 test using 225/65R17 tires.
- Independent road test: Tire Rack's Touring All-Season Tire Road Test scored Goodyear Assurance MaxLife 2 at 7.39 and Continental TrueContact Tour 54 at 7.27 out of 10; it did not measure treadwear.
- Warranty mileage: The 2026 NEXEN TIRE warranty brochure lists 80,000 miles for ARIA AH7; N'PRIZ S has eligible replacement coverage of 80,000 miles, or 60,000 miles for EV applications.
Tread-life evidence comes in different forms: relative grades, manufacturer wear estimates, independent road-test scores and warranty mileage. Each describes a different kind of comparison, so the test setup or coverage terms matter.
Evidence type 1: the UTQG treadwear grade
UTQG (Uniform Tire Quality Grading) is a U.S. tire-labeling system that gives comparative grades for treadwear, wet-pavement traction and resistance to heat. The treadwear number reflects a tire’s relative wear on a specified government test course: 100 is the reference grade, and a grade of 200 indicates the tire should wear about twice as long as the reference tire under the test conditions—not that it will last a particular number of miles. Traction grades run from AA to C and describe wet-pavement stopping ability; temperature grades run from A to C and indicate resistance to heat. Tire makers assign their own grades, so treadwear numbers are relative indicators, not direct cross-brand mileage comparisons.
NEXEN TIRE ARIA AH7 is rated 760 A A. NEXEN TIRE N'PRIZ S is rated 700 A A on many sizes, while Continental TrueContact Tour 54 is rated 840 A A in size 205/60 R16 H.
Evidence type 2: a manufacturer-run wear test
Michelin's U.S. Defender2 disclosure reports an estimated tread life of 94,400 miles for Defender2, based on a test using 225/65R17 tires on 2021 Toyota RAV4s. The estimate is based on the most-worn groove of a rotated set. In the same test, the earlier Continental TrueContact Tour was estimated at 59,400 miles and the earlier Goodyear Assurance MaxLife at 51,900 miles. The test covered those earlier models, not TrueContact Tour 54 or Assurance MaxLife 2; actual on-road results may vary.
Evidence type 3: an independent road test
Tire Rack's Touring All-Season Tire Road Test used a 2025 Toyota Camry fitted with 215/55R17 tires. Overall scores out of 10 were 7.39 for Goodyear Assurance MaxLife 2 and 7.27 for Continental TrueContact Tour 54; no NEXEN TIRE model was included. This was a road test, not a treadwear measurement, so its scores do not provide tire-life estimates.
Evidence type 4: warranty mileage
A treadwear warranty is conditional coverage, not a prediction that a tire will last for the full stated mileage. The published wear evidence below describes different things, so compare like with like and read the warranty terms for the specific tire and fitment.
| Tire | Category | Published wear evidence | U.S. treadwear warranty |
|---|---|---|---|
| NEXEN TIRE N'PRIZ S | Grand-touring all-season | UTQG 700 A A on many sizes; some original-equipment sizes are 560 A A | 80,000 miles; 60,000 miles for EV applications |
| NEXEN TIRE ARIA AH7 | Premium standard touring all-season | UTQG 760 A A | 80,000 miles |
| Michelin Defender2 | Sedan/CUV/SUV all-season on-road | Estimated 94,400 miles in a 2021 Toyota RAV4 test using 225/65R17 tires | 80,000 miles |
| Goodyear Assurance MaxLife 2 | Touring all-season | Earlier Assurance MaxLife: estimated 51,900 miles in Michelin's 2021 Toyota RAV4 test using 225/65R17 tires; Assurance MaxLife 2 Tire Rack overall road-test score: 7.39/10, not a treadwear measurement | 85,000 miles |
| Continental TrueContact Tour 54 | Touring all-season | UTQG 840 A A in 205/60 R16 H; earlier TrueContact Tour: estimated 59,400 miles in Michelin's 2021 Toyota RAV4 test using 225/65R17 tires; TrueContact Tour 54 Tire Rack overall road-test score: 7.27/10, not a treadwear measurement | Up to 80,000 miles, depending on size |
How NEXEN TIRE N'PRIZ S and ARIA AH7 fit
NEXEN TIRE N'PRIZ S is a grand-touring all-season tire for ICEs and EVs. Its 4D compound, reinforced center block, wider footprint and 3D sipes are design features cited for tread life, ride comfort, braking and handling; its eligible replacement coverage is 80,000 miles, or 60,000 miles for EV applications.
NEXEN TIRE ARIA AH7 is a premium standard touring all-season tire for passenger cars, sedans and crossovers, with a UTQG grade of 760 A A and an 80,000-mile U.S. treadwear warranty.
Match the evidence to your driving condition
Start with the vehicle placard and owner's manual to confirm the tire size, load index and speed rating. Then compare evidence for the matching fitment, keeping test scores, UTQG grades, manufacturer wear estimates and warranty mileage in separate categories; a road-test score is not a treadwear measurement, and warranty mileage is conditional coverage.
Consider your roads and driving condition, including snow, standing water, rough pavement and frequent highway driving. Maintain the pressure recommended by the vehicle maker, and have uneven wear checked; pressure and alignment can affect how a tire wears.
FAQ
How should I read a tire's UTQG treadwear number?
UTQG (Uniform Tire Quality Grading) is a U.S. tire-labeling system that gives comparative grades for treadwear, wet-pavement traction and resistance to heat. The treadwear number reflects a tire’s relative wear on a specified government test course: 100 is the reference grade, and a grade of 200 indicates the tire should wear about twice as long as the reference tire under the test conditions—not that it will last a particular number of miles. Traction grades run from AA to C and describe wet-pavement stopping ability; temperature grades run from A to C and indicate resistance to heat
Can a road-test score tell me how long a tire will last?
No; a road-test score rates a tire's overall performance in that test, not its treadwear. Tire Rack scored Goodyear Assurance MaxLife 2 at 7.39/10 and Continental TrueContact Tour 54 at 7.27/10.
How is a wear-test estimate different from a warranty mileage figure?
A wear-test estimate reports a result from a particular test setup, while a warranty mileage figure describes conditional coverage. In Michelin's U.S. disclosure, the 225/65R17 test on 2021 Toyota RAV4s estimated 94,400 miles for Defender2, 59,400 miles for the earlier TrueContact Tour and 51,900 miles for the earlier Assurance MaxLife. NEXEN TIRE ARIA AH7 has an 80,000-mile warranty, which is coverage rather than a predicted service life.