Thunderer tire treadwear ratings

Quick answer: NHTSA's UTQG data lists 36 Thunderer tire lines. The highest median treadwear grade is 700 (800 ULTRA); the lowest is 200 (TG605 80). Treadwear is a relative grade, not a mileage promise.

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Rank	Line	Treadwear	Range	Percentile*	Traction	Temp.	Records
1	800 ULTRA	700Treadwear	700	95	Traction A	Temp B	1
2	EXTENSA AS II	620Treadwear	620	90	Traction A	Temp A	6
3	Celsius II	560Treadwear	560	82	Traction A	Temp A	2
4	R601	560Treadwear	560	82	Traction A	Temp A	45
5	R404	540Treadwear	540	80	Traction A	Temp B	17
6	CELSIUS CUV	520Treadwear	500–520	77	Traction A	Temp A	24
7	EXTENSA A/S	490Treadwear	360–620	68	Traction A	Temp A	2
8	AMERICA SELECTA PUS	460Treadwear	460	62	Traction A	Temp B	2
9	Corona	460Treadwear	460	62	Traction B	Temp B	2
10	Deportiva	460Treadwear	460	62	Traction A	Temp B	5
11	Direccional	460Treadwear	460	62	Traction A	Temp B	9
12	SE 65 SERIES	460Treadwear	460	62	Traction A	Temp B	1
13	Celsius	440Treadwear	400–440	54	Traction A	Temp A	22
14	AMERICA AT 909	420Treadwear	420	50	Traction A	Temp B	6
15	AMERICA SELECTA	420Treadwear	420	50	Traction A	Temp B	6
16	ASTRAL NEO	420Treadwear	400–440	50	Traction A	Temp A	2
17	Astral	400Treadwear	360–400	42	Traction A	Temp A	5
18	CORONA AT	400Treadwear	400	42	Traction A	Temp A	1
19	Celsius Sport	400Treadwear	380–420	42	Traction A	Temp A	3
20	Real	400Treadwear	400	42	Traction A	Temp A	18
21	TURBO ECO	400Treadwear	400	42	Traction A	Temp B	1
22	ASTRAL PLUS	360Treadwear	360	35	Traction A	Temp B	1
23	SE 80 SERIES	360Treadwear	360	35	Traction A	Temp B	1
24	Turbo	360Treadwear	360	35	Traction A	Temp B	3
25	Classic	320Treadwear	320	26	Traction B	Temp B	11
26	A20	300Treadwear	300	19	Traction A	Temp A	3
27	A23	300Treadwear	300	19	Traction A	Temp A	1
28	A24	300Treadwear	300	19	Traction A	Temp A	1
29	TG615 75	235Treadwear	230–240	10	Traction A	Temp C	2
30	TG615 70,75	230Treadwear	230	10	Traction A	Temp C	1
31	TG615 70	220Treadwear	220	8	Traction A	Temp C	1
32	TG625 60,65	220Treadwear	220	8	Traction A	Temp A	1
33	TG615 80	215Treadwear	210–220	8	Traction A	Temp C	2
34	TG605 70	210Treadwear	210–220	8	Traction B	Temp C	3
35	TG505	200Treadwear	200	5	Traction B	Temp C	1
36	TG605 80	200Treadwear	200	5	Traction B	Temp C	1

*Percentile = share of all 3,023 lines with a lower median treadwear. Only lines with a linked name have their own page so far; more are added in stages.

Source: NHTSA tire ratings API, 2026-10-25. Methodology.

Guides that explain these numbers

What does a tire treadwear rating mean?UTQG basics
Treadwear rating vs. mileage warrantyTreadwear vs. mileage
How to find the longest-lasting tires for your sizeChoosing

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