Montgomery tire treadwear ratings

Quick answer: NHTSA's UTQG data lists 5 Montgomery tire lines. The highest median treadwear grade is 500 (Ovation); the lowest is 300 (NS70). Treadwear is a relative grade, not a mileage promise.

Click a column heading to sort.

Rank	Line	Treadwear	Range	Percentile*	Traction	Temp.	Records
1	Ovation	500Treadwear	500–700	68	Traction A	Temp A	26
2	NH55	380Treadwear	380	40	Traction A	Temp A	1
3	NH60	340Treadwear	300–380	31	Traction A	Temp A	2
4	NH65	300Treadwear	300	19	Traction A	Temp A	1
5	NS70	300Treadwear	300	19	Traction A	Temp B	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.