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Yokohama Aegis LS4: treadwear rating & UTQG grades
Grade summary
Key facts
| Treadwear (NHTSA UTQG) | 420median · range 420 · band 400–499 |
|---|---|
| Traction grade(s) | Traction A |
| Temperature grade(s) | Temp B |
| Percentile (all lines) | Median treadwear higher than 50% of 3,020 lines |
| Rank within Yokohama | #9 of 18 rated lines (by median treadwear) |
| NHTSA records | 22 total; 22 name a specific size (22 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 420: this is an above-average treadwear grade, typical of many touring and all-season tires. 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 B: B: passed the 500 rpm stage but not the 575 rpm stage.
- Ranked just above in Yokohama: AVID T4 (median 420).
- Ranked just below in Yokohama: Parada Spec-X (median 420).
NHTSA records for Yokohama Aegis LS4
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 |
|---|---|---|---|
| P175/65R14 81S | 420 | Traction A | Temp B |
| P175/70R13 82S | 420 | Traction A | Temp B |
| P175/70R14 84S | 420 | Traction A | Temp B |
| P185/65R14 85S | 420 | Traction A | Temp B |
| P185/70R13 85S | 420 | Traction A | Temp B |
| P185/70R14 87S | 420 | Traction A | Temp B |
| P185/75R14 89S | 420 | Traction A | Temp B |
| P195/70R14 90S | 420 | Traction A | Temp B |
| P195/75R14 92S | 420 | Traction A | Temp B |
| P205/65R15 92S | 420 | Traction A | Temp B |
| P205/70R14 93S | 420 | Traction A | Temp B |
| P205/70R15 95S | 420 | Traction A | Temp B |
| P205/75R14 95S | 420 | Traction A | Temp B |
| P205/75R15 97S | 420 | Traction A | Temp B |
| P215/65R15 95S | 420 | Traction A | Temp B |
| P215/70R14 96S | 420 | Traction A | Temp B |
| P215/70R15 97S | 420 | Traction A | Temp B |
| P215/75R15 100S | 420 | Traction A | Temp B |
| P225/70R15 100S | 420 | Traction A | Temp B |
| P225/75R15 102S | 420 | Traction A | Temp B |
| P235/70R15 102S | 420 | Traction A | Temp B |
| P235/75R15 105S | 420 | Traction A | Temp B |
Compare this line with others in the same size: 175/65R14, 175/70R13, 175/70R14, 185/65R14, 185/70R13, 185/70R14, 195/70R14, 195/75R14, 205/65R15, 205/70R14, 205/70R15, 205/75R15, 215/65R15, 215/70R14, 215/70R15, 215/75R15, 225/70R15, 225/75R15, 235/70R15, 235/75R15.
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 Yokohama lines by treadwear
| Rank | Line | Median treadwear |
|---|---|---|
| 1 | AVID TRZ | 700Treadwear |
| 2 | AVID Touring | 620Treadwear |
| 3 | C4 | 520Treadwear |
| 4 | AVID H4s/V4s | 500Treadwear |
| 5 | Geolandar A/T-S | 500Treadwear |
| 6 | Geolandar H/T-S | 500Treadwear |
| 7 | Xi427 | 460Treadwear |
| 8 | AVID T4 | 420Treadwear |
| 9 | Aegis LS4 (this page) | 420Treadwear |
| 10 | Parada Spec-X | 420Treadwear |
| 11 | AVID W4s | 400Treadwear |
| 12 | Geolandar H/T | 360Treadwear |
Similar treadwear from other brands
Other lines in the same treadwear band (400–499) with a page here: Continental CrossContact UHP (420), Continental EcoContact 6 (420), Cyclone Touring A/S (420), Jupiter HP 1000 (420), National Velozza ZXV4 (420), Neutral CLASSE PREMIERE (420).
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 Yokohama Aegis LS4?
NHTSA's UTQG data lists a single treadwear grade of 420 for the Yokohama Aegis LS4, from 22 records. Treadwear is graded in multiples of 20 relative to a government control tire graded 100; it is not a mileage guarantee.
Is the Yokohama Aegis LS4 treadwear grade high or low?
A grade of 420 is an above-average treadwear grade, typical of many touring and all-season tires. Compared with every line in the NHTSA data, the median is higher than 50% of lines (dataset median 420). Within Yokohama it ranks #9 of 18.
What is the cost per mile of the Yokohama Aegis LS4?
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.