Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.
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Prices change daily — check the retailer for your size.
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Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.
| Source | Grandtrek AT20 | Defender LTX M/S |
|---|---|---|
| Tire Rack owners | 50 | 92 |
| Tyre Reviews owners | 73 | 94 |
| SimpleTire owners | 89 | – |
| Source | Grandtrek AT20 | Defender LTX M/S |
|---|---|---|
| Tire Rack owners | 50 | 83 |
| Tyre Reviews owners | 52 | 91 |
| SimpleTire owners | 85 | – |
| Source | Grandtrek AT20 | Defender LTX M/S |
|---|---|---|
| Tire Rack owners | 62 | 94 |
| Tyre Reviews owners | 23 | 80 |
| SimpleTire owners | 82 | – |
| Source | Grandtrek AT20 | Defender LTX M/S |
|---|---|---|
| Tire Rack owners | 38 | 84 |
| Tyre Reviews owners | 69 | 87 |
| SimpleTire owners | 87 | – |
| Source | Grandtrek AT20 | Defender LTX M/S |
|---|---|---|
| SimpleTire owners | 83 | – |
| Source | Grandtrek AT20 | Defender LTX M/S |
|---|---|---|
| Tire Rack owners | 69 | 92 |
| Tyre Reviews owners | 68 | 97 |
| SimpleTire owners | 83 | – |
| Source | Grandtrek AT20 | Defender LTX M/S |
|---|---|---|
| Tyre Reviews owners | 64 | 85 |
| Category | Dunlop Grandtrek AT20 | Michelin Defender LTX M/S |
|---|---|---|
| Relative Score | 59 | 95 |
| Dry | 73 | 98 |
| Wet | 52 | 96 |
| Snow | 24 | 82 |
| Comfort | 69 | 96 |
| Noise | – | 95 |
| Treadwear | 68 | 97 |
| Handling | 64 | 97 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Tire A
Tire B
Only categories both tires have data for count toward the headline score.
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Dunlop Grandtrek A/T20 is a polarizing tire that is frequently criticized for its poor wet-weather performance and limited off-road capability, despite being a common original equipment choice for various 4x4s. While a significant portion of users report exceptional tread longevity and acceptable dry-road comfort, many owners find the lack of confidence in rain and snow to be a safety concern that outweighs the tire's durability.
The Michelin Defender LTX M/S is widely regarded as a premier all-season tire for trucks and SUVs, consistently praised for its exceptional tread longevity and balanced performance across various weather conditions. While the vast majority of users report superior ride comfort, stability, and fuel efficiency, a small minority of owners have noted issues with increased road noise as the tires age or inconsistent traction in specific wet-weather scenarios.
| Attribute | A · Dunlop Grandtrek AT20 | B · Michelin Defender LTX M/S |
|---|---|---|
| Category | — | Premium Touring All Season tire |
| Vehicle type | — | SUV and 4x4 |
| Sidewall | Blackwall | — |
Dunlop
Michelin
Winner: Michelin Defender LTX M/S — better snow, wet and handling. It leads or ties in every category we score.
Michelin Defender LTX M/S scores 82 vs 24 on snow.
Michelin Defender LTX M/S scores 96 vs 52 on wet.
Michelin Defender LTX M/S scores 97 vs 64 on handling.
Michelin Defender LTX M/S scores 97 vs 68 on treadwear.
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.
Community buzz from Reddit and forums is shown for context only — it never changes the score.
