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Thunderer · tire line

Thunderer R601: treadwear rating & UTQG grades

Quick answer: Thunderer R601 has a single treadwear grade of 560 across 45 NHTSA UTQG records, traction A ×45 and temperature A ×45. Its median treadwear is higher than 82% of the 3,020 tire lines in the dataset, and ranks #4 of 36 rated Thunderer lines.

Grade summary

NHTSA UTQG
560median treadwear

Higher than 82% of 3,020 lines · #4 of 36 Thunderer lines

Traction ATemp A

Key facts

Treadwear (NHTSA UTQG)
Traction grade(s)Traction A A ×45
Temperature grade(s)Temp A A ×45
Percentile (all lines)Median treadwear higher than 82% of 3,020 lines
Rank within Thunderer#4 of 36 rated lines (by median treadwear)
NHTSA records45 total; 45 name a specific size (45 distinct sizes)
Warranty milesNot shown (no maker-published figure verified)
PriceNot shown (varies by size and store); see “Where to buy”

What these grades mean in plain English

  • Treadwear 560: 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 Thunderer: Celsius II (median 560).
  • Ranked just below in Thunderer: R404 (median 540).

NHTSA records for Thunderer R601

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)TreadwearTractionTemperature
205/70R14560Traction ATemp A
205/70R15560Traction ATemp A
215/65R16560Traction ATemp A
215/70R15560Traction ATemp A
215/70R16560Traction ATemp A
215/75R15560Traction ATemp A
225/55R17560Traction ATemp A
225/55R18560Traction ATemp A
225/60R17560Traction ATemp A
225/60R18560Traction ATemp A
225/65R17560Traction ATemp A
225/70R15560Traction ATemp A
225/70R16560Traction ATemp A
225/75R15560Traction ATemp A
225/75R16560Traction ATemp A
235/55R18560Traction ATemp A
235/60R17560Traction ATemp A
235/60R18560Traction ATemp A
235/65R17560Traction ATemp A
235/70R15560Traction ATemp A
235/70R16560Traction ATemp A
235/70R17560Traction ATemp A
235/75R15560Traction ATemp A
245/60R18560Traction ATemp A
245/65R17560Traction ATemp A
245/70R16560Traction ATemp A
245/70R17560Traction ATemp A
245/75R16560Traction ATemp A
255/55R18560Traction ATemp A
255/65R18560Traction ATemp A
255/70R16560Traction ATemp A
255/70R18560Traction ATemp A
265/50R20560Traction ATemp A
265/60R18560Traction ATemp A
265/65R17560Traction ATemp A
265/70R16560Traction ATemp A
265/70R17560Traction ATemp A
265/70R18560Traction ATemp A
265/75R16560Traction ATemp A
275/55R20560Traction ATemp A
275/60R20560Traction ATemp A
275/65R18560Traction ATemp A
285/50R20560Traction ATemp A
285/60R18560Traction ATemp A
285/65R17560Traction ATemp A

Compare this line with others in the same size: 205/70R14, 205/70R15, 215/65R16, 215/70R15, 215/70R16, 215/75R15, 225/55R17, 225/55R18, 225/60R17, 225/60R18, 225/65R17, 225/70R15, 225/70R16, 225/75R15, 235/55R18, 235/60R17, 235/60R18, 235/65R17, 235/70R15, 235/70R16, 235/70R17, 235/75R15, 245/60R18, 245/65R17, 245/70R16, 245/70R17, 245/75R16, 255/55R18, 255/65R18, 255/70R16, 265/50R20, 265/60R18, 265/65R17, 265/70R16, 265/70R17, 265/70R18, 265/75R16, 275/55R20, 275/60R20, 275/65R18, 285/60R18.

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).

Enter a price and expected miles.

Other Thunderer lines by treadwear

RankLineMedian treadwear
1800 ULTRA
2EXTENSA AS II
3Celsius II
4R601 (this page)
5R404
6CELSIUS CUV
7EXTENSA A/S
8AMERICA SELECTA PUS
9Corona
10Deportiva
11Direccional
12SE 65 SERIES

All Thunderer lines →

Similar treadwear from other brands

Other lines in the same treadwear band (500–599) with a page here: Americus CUV (560), Americus Touring CUV (560), Bridgestone TURANZA LS100 (560), Certified AllTrek (560), Falken AZENIS PT722 (standard load) (560), Firestone FR710 (560).

Guides that explain these numbers

FAQ

What is the treadwear rating of the Thunderer R601?

NHTSA's UTQG data lists a single treadwear grade of 560 for the Thunderer R601, from 45 records. Treadwear is graded in multiples of 20 relative to a government control tire graded 100; it is not a mileage guarantee.

Is the Thunderer R601 treadwear grade high or low?

A grade of 560 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 82% of lines (dataset median 420). Within Thunderer it ranks #4 of 36.

What is the cost per mile of the Thunderer R601?

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.

Last updated: · Data: NHTSA tire ratings (UTQG) API, pulled 2026-10-25. 7,628 records.