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.
Head-to-head
Updated September 2026
Kumho Ecsta STX KL12 vs Toyo Proxes T1 Sport — Compared (September 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
77
/ 100
Objective (60%)
70/100
1 professional test
User signal (40%)
77/100
81 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Kumho Ecsta STX KL12 — better noise, treadwear and dry. Pick the Toyo Proxes T1 Sport if handling matters most to you.
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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)
Ecsta STX KL12 leads by 12
Why this score
| Source | Ecsta STX KL12 | Proxes T1 Sport |
|---|---|---|
| Professional tests (TWG score) | – | 72 |
| Tyre Reviews owners | 70 | 90 |
| SimpleTire owners | 97 | – |
Wet
Score (0–100)
Ecsta STX KL12 leads by 1
Why this score
| Source | Ecsta STX KL12 | Proxes T1 Sport |
|---|---|---|
| Professional tests (TWG score) | – | 79 |
| Tyre Reviews owners | 47 | 79 |
| SimpleTire owners | 90 | – |
Snow
Score (0–100)
Why this score
| Source | Ecsta STX KL12 | Proxes T1 Sport |
|---|---|---|
| SimpleTire owners | 87 | – |
Comfort
Score (0–100)
Ecsta STX KL12 leads by 10
Why this score
| Source | Ecsta STX KL12 | Proxes T1 Sport |
|---|---|---|
| Tyre Reviews owners | 80 | 78 |
| SimpleTire owners | 92 | – |
Noise
Score (0–100)
Ecsta STX KL12 leads by 19
Why this score
| Source | Ecsta STX KL12 | Proxes T1 Sport |
|---|---|---|
| Professional tests (TWG score) | – | 73 |
| SimpleTire owners | 92 | – |
Treadwear
Score (0–100)
Ecsta STX KL12 leads by 14
Why this score
| Source | Ecsta STX KL12 | Proxes T1 Sport |
|---|---|---|
| Tyre Reviews owners | 70 | 67 |
| SimpleTire owners | 87 | – |
Handling
Score (0–100)
Proxes T1 Sport leads by 24
Why this score
| Source | Ecsta STX KL12 | Proxes T1 Sport |
|---|---|---|
| Tyre Reviews owners | 60 | 84 |
Scores at a glance
| Category | Kumho Ecsta STX KL12 | Toyo Proxes T1 Sport |
|---|---|---|
| Relative Score | 83 | 77 |
| Dry | 91 | 79 |
| Wet | 81 | 80 |
| Snow | 87 | – |
| Comfort | 89 | 79 |
| Noise | 92 | 73 |
| Treadwear | 83 | 69 |
| Handling | 60 | 84 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
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Recomputed
Headline score
83
/ 100
Tire A
77
/ 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.
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.
The Toyo Proxes T1 Sport is widely regarded as a high-performance summer tire that offers excellent dry and wet grip at a competitive price point. While many users praise its handling, steering feedback, and comfort levels, the consensus is heavily tempered by concerns regarding its rapid tread wear and inconsistent longevity.
Pros
- Strong dry and wet traction for spirited driving
- High value-to-performance ratio compared to premium competitors
- Improved ride comfort and noise levels compared to run-flat alternatives
- Predictable handling and feedback during cornering
Cons
- Rapid and often premature tread wear
- Sensitivity to road imperfections and tramlining
- Occasional reports of hydroplaning in deep standing water
- Inconsistent performance in cold or extreme wet conditions
Observations
- Owners of heavy SUVs and high-torque vehicles (e.g., Range Rover Sport, BMW wagons) report significantly accelerated outer-edge wear.
- Users transitioning from run-flat tires to the T1 Sport frequently note a substantial improvement in ride quality and cabin noise.
- Performance-oriented drivers on lowered or modified suspensions emphasize the need for precise alignment, as the soft compound is highly susceptible to uneven wear.
Specifications
Specs side by side
| Attribute | A · Kumho Ecsta STX KL12 | B · Toyo Proxes T1 Sport |
|---|---|---|
| Category | Summer High Performance tires | Summer Ultra High Performance tires |
| Vehicle type | SUV and 4x4 | Passenger Car / Crossover |
| 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?
83
/ 100
Kumho
77
/ 100
Toyo
Winner: Kumho Ecsta STX KL12 — better noise, treadwear and dry. Pick the Toyo Proxes T1 Sport if handling matters most to you.
Pick tire B
You enjoy sharp, responsive handling
Toyo Proxes T1 Sport scores 84 vs 60 on handling.
Pick tire A
You want a quieter cabin
Kumho Ecsta STX KL12 scores 92 vs 73 on noise.
Pick tire A
You want the longest tread life
Kumho Ecsta STX KL12 scores 83 vs 69 on treadwear.
Pick tire A
You want the most grip on dry roads
Kumho Ecsta STX KL12 scores 91 vs 79 on dry.
Tire A · Kumho Ecsta STX KL12
Tire B · Toyo Proxes T1 Sport
More comparisons
Also compared with
Kumho Ecsta STX KL12 also compared with
Toyo Proxes T1 Sport 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.