Sumitomo · tire line
Sumitomo Mach 2 R301: treadwear rating & UTQG grades
Grade summary
Key facts
| Treadwear (NHTSA UTQG) | 500median · range 500 · band 500–599 |
|---|---|
| Traction grade(s) | Traction A |
| Temperature grade(s) | Temp A |
| Percentile (all lines) | Median treadwear higher than 68% of 3,020 lines |
| Rank within Sumitomo | #34 of 72 rated lines (by median treadwear) |
| NHTSA records | 9 total; 9 name a specific size (9 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 500: this is a high treadwear grade; the manufacturer rates this tire to wear slowly relative to the government control tire. 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 Sumitomo: Mach 1 R201 (median 500).
- Ranked just below in Sumitomo: TOUR PLUS LSV (V rated) (median 500).
NHTSA records for Sumitomo Mach 2 R301
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 |
|---|---|---|---|
| 185/55R15 | 500 | Traction A | Temp A |
| 195/50R15 | 500 | Traction A | Temp A |
| 195/55R15 | 500 | Traction A | Temp A |
| 195/65R15 | 500 | Traction A | Temp A |
| 205/55R16 | 500 | Traction A | Temp A |
| 205/60R15 | 500 | Traction A | Temp A |
| 205/65R15 | 500 | Traction A | Temp A |
| 215/55R16 | 500 | Traction A | Temp A |
| 215/60R16 | 500 | Traction A | Temp A |
Compare this line with others in the same size: 185/55R15, 195/50R15, 195/55R15, 195/65R15, 205/55R16, 205/60R15, 205/65R15, 215/55R16, 215/60R16.
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 Sumitomo lines by treadwear
| Rank | Line | Median treadwear |
|---|---|---|
| 1 | HTR Enhance LX2 (T-rating) | 800Treadwear |
| 2 | HTR ENHANCE L/X "T" (standard load) | 700Treadwear |
| 3 | HTR Enhance LX2 (H-rating) | 700Treadwear |
| 4 | ECHELON ULTRA LST (T rated) | 680Treadwear |
| 5 | HTR ENHANCE CX2 | 680Treadwear |
| 6 | ENCOUNTER AT | 660Treadwear |
| 7 | HTR Enhance LX2 (V-rated sizes) | 660Treadwear |
| 8 | ENCOUNTER HT2 (H and V rating) | 640Treadwear |
| 9 | ENCOUNTER HT2 (T rating) | 640Treadwear |
| 10 | HTR A/S P03 (H and V rating) | 640Treadwear |
| 11 | HTR ENHANCE CUV (H rating) | 640Treadwear |
| 12 | Tempra Touring TR | 620Treadwear |
Similar treadwear from other brands
Other lines in the same treadwear band (500–599) with a page here: American PROSPECTOR A/T LT (500), Americus Sport HP (500), Americus Touring Plus (500), Bridgestone DUELER H/P SPORT AS (500), Comanche RADIAL A/T (500), Comanche RADIAL H/T (500).
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 Sumitomo Mach 2 R301?
NHTSA's UTQG data lists a single treadwear grade of 500 for the Sumitomo Mach 2 R301, from 9 records. Treadwear is graded in multiples of 20 relative to a government control tire graded 100; it is not a mileage guarantee.
Is the Sumitomo Mach 2 R301 treadwear grade high or low?
A grade of 500 is a high treadwear grade; the manufacturer rates this tire to wear slowly relative to the government control tire. Compared with every line in the NHTSA data, the median is higher than 68% of lines (dataset median 420). Within Sumitomo it ranks #34 of 72.
What is the cost per mile of the Sumitomo Mach 2 R301?
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.