Cooper · tire line
Cooper DISCOVERER SRX (H-rated): treadwear rating & UTQG grades
Grade summary
Key facts
| Treadwear (NHTSA UTQG) | 600.5median · range 600–740 · band 600 and up |
|---|---|
| Traction grade(s) | Traction A |
| Temperature grade(s) | Temp A |
| Percentile (all lines) | Median treadwear higher than 90% of 3,020 lines |
| Rank within Cooper | #20 of 34 rated lines (by median treadwear) |
| NHTSA records | 4 total; 2 name a specific size (2 distinct sizes) |
| Warranty miles | Not shown (no maker-published figure verified) |
| Price | Not shown (varies by size and store); see “Where to buy” |
What these grades mean in plain English
- Treadwear 600.5: this is a very high treadwear grade, the top end of the UTQG scale. Under UTQG a grade of 200 should wear twice as long as the grade-100 control tire on NHTSA's test course; real-world mileage varies with driving, rotation, alignment and climate.
- Traction A: A: second-highest wet-braking grade. Traction is straight-ahead wet braking only; it does not measure cornering or hydroplaning.
- Temperature A: A (highest): resisted heat build-up through the higher 575 rpm test stage.
- Ranked just above in Cooper: DISCOVERER ROAD + TRAIL AT (median 620).
- Ranked just below in Cooper: ADVENTURER H/T (median 600).
NHTSA records for Cooper DISCOVERER SRX (H-rated)
Each row is one NHTSA record as filed by the manufacturer. Sizes are shown exactly as NHTSA lists them; entries such as “All sizes” apply a single grade to several sizes and cannot be matched to one specific size.
| Size (as filed) | Treadwear | Traction | Temperature |
|---|---|---|---|
| ALL | 740 | Traction A | Temp A |
| All others | 601 | Traction A | Temp A |
| 255/50R19 107H | 600 | Traction A | Temp A |
| 275/50R20 109H | 600 | Traction A | Temp A |
Compare this line with others in the same size: 255/50R19, 275/50R20.
Cost-per-mile calculator
Price and mileage data are pending a licensed feed, so nothing is pre-filled. Enter your own quote and your own mileage expectation (for example the maker's treadwear warranty from the tire's paperwork). Formula: cost per 1,000 miles = price per set ÷ (expected miles ÷ 1,000).
Other Cooper lines by treadwear
| Rank | Line | Median treadwear |
|---|---|---|
| 1 | CS5 GRAND TOURING | 780Treadwear |
| 2 | DISCOVERER SRX (S/T-rated) | 740Treadwear |
| 3 | PROCONTROL (H-rated) | 740Treadwear |
| 4 | PROCONTROL (T-rated) | 740Treadwear |
| 5 | PROCONTROL (V-rated) | 740Treadwear |
| 6 | DISCOVERER HT | 700Treadwear |
| 7 | DISCOVERER HTP II | 700Treadwear |
| 8 | DISCOVERER SRX (V-rated) | 700Treadwear |
| 9 | ENDEAVOR PLUS (H/V-rated) | 680Treadwear |
| 10 | ENDEAVOR PLUS (T-rated) | 680Treadwear |
| 11 | Endeavor | 680Treadwear |
| 12 | ADVENTURER ALL SEASON | 660Treadwear |
Similar treadwear from other brands
Other lines in the same treadwear band (600–699) with a page here: Eldorado HTX Sport II (600), Goodride SU317 (600), Hankook NEW ENGLANDER 4s (600), Hercules ROADTOUR XUV (600), JK Tyre ELANZO TOURING + (600), Mohawk Wild Country Sport HT (600).
Guides that explain these numbers
- What does a tire treadwear rating mean?UTQG basics
- Treadwear rating vs. mileage warrantyTreadwear vs. mileage
- How to make your tires last longerMaintenance
FAQ
What is the treadwear rating of the Cooper DISCOVERER SRX (H-rated)?
NHTSA's UTQG data lists treadwear grades from 600 to 740 (median 600.5) for the Cooper DISCOVERER SRX (H-rated), from 4 records. Treadwear is graded in multiples of 20 relative to a government control tire graded 100; it is not a mileage guarantee.
Is the Cooper DISCOVERER SRX (H-rated) treadwear grade high or low?
A grade of 600.5 is a very high treadwear grade, the top end of the UTQG scale. Compared with every line in the NHTSA data, the median is higher than 90% of lines (dataset median 420). Within Cooper it ranks #20 of 34.
What is the cost per mile of the Cooper DISCOVERER SRX (H-rated)?
We do not have a licensed price or warranty-mileage feed yet, so we do not state a cost per mile. Use the formula cost per 1,000 miles = price per set ÷ (expected miles ÷ 1,000) with your own quote and mileage expectation, or the calculator on this page.
Source and caveats
Source: NHTSA tire ratings API, pulled 2026-10-25. Grade definitions: NHTSA TireWise and 49 CFR 575.104. Grades are self-reported by manufacturers. The NHTSA data has no “currently sold” flag (its active field is false on every record), so a listed line may be discontinued. See methodology.