Motomaster tire treadwear ratings

Quick answer: NHTSA's UTQG data lists 4 Motomaster tire lines. The highest median treadwear grade is 440 (Aspen Touring A/S); the lowest is 280 (NS80). Treadwear is a relative grade, not a mileage promise.

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Rank	Line	Treadwear	Range	Percentile*	Traction	Temp.	Records
1	Aspen Touring A/S	440Treadwear	400–440	54	Traction A	Temp B	9
2	NV700	360Treadwear	360	35	Traction A	Temp A	1
3	NV50	300Treadwear	300	19	Traction A	Temp A	1
4	NS80	280Treadwear	280	15	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.