–
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
–/100
No reviews yet
Prices change daily — check the retailer for your size.
Head-to-head
Updated May 2026
Dunlop SP Sport 01 DSST RunOnFlat vs Kumho Ecsta STX KL12 — Compared (May 2026)
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.
VS
83
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
86/100
15 owner reviews
Prices change daily — check the retailer for your size.
VerdictOnly Kumho Ecsta STX KL12 has enough test and review data for a Relative Score, so there is no head-to-head winner yet.
Read full
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Category breakdown
7 categories, side by side
Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.
Dry
Score (0–100)
Why this score
| Source | SP Sport 01 DSST RunOnFlat | Ecsta STX KL12 |
|---|---|---|
| Tyre Reviews owners | – | 70 |
| SimpleTire owners | – | 97 |
Wet
Score (0–100)
Why this score
| Source | SP Sport 01 DSST RunOnFlat | Ecsta STX KL12 |
|---|---|---|
| Tyre Reviews owners | – | 47 |
| SimpleTire owners | – | 90 |
Snow
Score (0–100)
Why this score
| Source | SP Sport 01 DSST RunOnFlat | Ecsta STX KL12 |
|---|---|---|
| SimpleTire owners | – | 87 |
Comfort
Score (0–100)
Why this score
| Source | SP Sport 01 DSST RunOnFlat | Ecsta STX KL12 |
|---|---|---|
| Tyre Reviews owners | – | 80 |
| SimpleTire owners | – | 92 |
Noise
Score (0–100)
Why this score
| Source | SP Sport 01 DSST RunOnFlat | Ecsta STX KL12 |
|---|---|---|
| SimpleTire owners | – | 92 |
Treadwear
Score (0–100)
Why this score
| Source | SP Sport 01 DSST RunOnFlat | Ecsta STX KL12 |
|---|---|---|
| Tyre Reviews owners | – | 70 |
| SimpleTire owners | – | 87 |
Handling
Score (0–100)
Why this score
| Source | SP Sport 01 DSST RunOnFlat | Ecsta STX KL12 |
|---|---|---|
| Tyre Reviews owners | – | 60 |
Scores at a glance
| Category | Dunlop SP Sport 01 DSST RunOnFlat | Kumho Ecsta STX KL12 |
|---|---|---|
| Relative Score | – | 83 |
| Dry | – | 91 |
| Wet | – | 81 |
| Snow | – | 87 |
| Comfort | – | 89 |
| Noise | – | 92 |
| Treadwear | – | 83 |
| Handling | – | 60 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Personalize
Weight the categories that matter to you
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Neutral
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Important
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Neutral
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Neutral
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Neutral
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Important
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Neutral
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Recomputed
Headline score
–
/ 100
Tire A
83
/ 100
Tire B
Only categories both tires have data for count toward the headline score.
From owners
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
Not enough owner reviews yet to extract themes.
The Kumho Ecsta STX KL12 is widely regarded as a high-value tire that offers impressive longevity and reliable grip for the price point. While most users report high satisfaction with its performance and durability, a minority of drivers have experienced issues with traction, particularly on specific luxury SUV platforms.
Pros
- Excellent price-to-performance ratio
- High tread life and durability
- Strong wet weather grip and cornering stability
- Deep initial tread depth
Cons
- Potential for increased road noise over time
- Inconsistent traction performance on certain vehicle chassis
- Accelerated wear on poor road surfaces
Observations
- Users driving the BMW X3 reported significant traction issues, suggesting the tire may not be well-suited for the handling characteristics of certain performance-oriented SUVs.
- Drivers report high mileage longevity, with some users claiming up to 75,000 miles of service.
Specifications
Specs side by side
| Attribute | A · Dunlop SP Sport 01 DSST RunOnFlat | B · Kumho Ecsta STX KL12 |
|---|---|---|
| Category | — | Summer High Performance tires |
| Vehicle type | — | SUV and 4x4 |
| Sizes available | — | 7 |
| Rim diameters | — | 18″ – 22″ |
| Tread depth | — | 11.5/32″ |
| UTQG | — | 420 A A |
| Sidewall | — | Blackwall |
| Max pressure | — | 50 psi |
Final verdict
Which one should you actually buy?
–
/ 100
Dunlop
83
/ 100
Kumho
Only Kumho Ecsta STX KL12 has enough test and review data for a Relative Score, so there is no head-to-head winner yet.
Tire A · Dunlop SP Sport 01 DSST RunOnFlat
Tire B · Kumho Ecsta STX KL12
More comparisons
Also compared with
Dunlop SP Sport 01 DSST RunOnFlat also compared with
Kumho Ecsta STX KL12 also compared with
How do we compare tires?
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.