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 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
71
/ 100
Objective (60%)
70/100
15 professional tests
User signal (40%)
71/100
53 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Kumho Ecsta STX KL12 — better comfort, noise and dry. Pick the Toyo Proxes Sport if handling matters most to you.
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)
Ecsta STX KL12 leads by 15
Why this score
| Source | Ecsta STX KL12 | Proxes Sport |
|---|---|---|
| Professional tests (TWG score) | – | 71 |
| Tire Rack owners | – | 89 |
| Tyre Reviews owners | 70 | 75 |
| SimpleTire owners | 97 | 99 |
Wet
Score (0–100)
Ecsta STX KL12 leads by 2
Why this score
| Source | Ecsta STX KL12 | Proxes Sport |
|---|---|---|
| Professional tests (TWG score) | – | 82 |
| Tire Rack owners | – | 82 |
| Tyre Reviews owners | 47 | 62 |
| SimpleTire owners | 90 | 86 |
Snow
Score (0–100)
Why this score
| Source | Ecsta STX KL12 | Proxes Sport |
|---|---|---|
| SimpleTire owners | 87 | 48 |
Comfort
Score (0–100)
Ecsta STX KL12 leads by 33
Why this score
| Source | Ecsta STX KL12 | Proxes Sport |
|---|---|---|
| Professional tests (TWG score) | – | 43 |
| Tire Rack owners | – | 80 |
| Tyre Reviews owners | 80 | 69 |
| SimpleTire owners | 92 | 96 |
Noise
Score (0–100)
Ecsta STX KL12 leads by 22
Why this score
| Source | Ecsta STX KL12 | Proxes Sport |
|---|---|---|
| Professional tests (TWG score) | – | 70 |
| SimpleTire owners | 92 | 93 |
Treadwear
Score (0–100)
Ecsta STX KL12 leads by 12
Why this score
| Source | Ecsta STX KL12 | Proxes Sport |
|---|---|---|
| Tire Rack owners | – | 72 |
| Tyre Reviews owners | 70 | 69 |
| SimpleTire owners | 87 | 88 |
Handling
Score (0–100)
Proxes Sport leads by 5
Why this score
| Source | Ecsta STX KL12 | Proxes Sport |
|---|---|---|
| Tyre Reviews owners | 60 | 65 |
| DriverReviews owners | – | 82 |
Scores at a glance
| Category | Kumho Ecsta STX KL12 | Toyo Proxes Sport |
|---|---|---|
| Relative Score | 83 | 71 |
| Dry | 91 | 76 |
| Wet | 81 | 79 |
| Snow | 87 | – |
| Comfort | 89 | 56 |
| Noise | 92 | 70 |
| Treadwear | 83 | 71 |
| Handling | 60 | 65 |
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.
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Neutral
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Recomputed
Headline score
83
/ 100
Tire A
71
/ 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 Sport is a polarizing budget-oriented performance tire that offers strong value for daily driving but receives mixed feedback regarding its consistency. While many users praise its dry grip and comfort levels, a significant portion of owners report rapid tread wear and unpredictable performance in wet conditions, particularly on high-performance vehicles.
Pros
- High value-to-price ratio compared to premium performance tires
- Generally quiet and comfortable ride quality
- Predictable and progressive handling in dry conditions
- Good initial wet-weather traction for moderate driving
Cons
- Rapid and inconsistent tread wear
- Unpredictable traction in wet conditions, with reports of sudden loss of grip
- Soft sidewall construction leading to vague steering feedback for spirited driving
- Increased noise levels reported by some users after initial break-in
Observations
- High-horsepower or rear-wheel-drive performance vehicles often experience significant traction loss and rapid wear.
- Users on daily-driven commuter vehicles report higher satisfaction with comfort and noise levels compared to those on dedicated sports cars.
- The tire's performance is highly sensitive to vehicle alignment, with soft compounds prone to premature wear if suspension settings are not optimal.
Community buzz
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Kumho Ecsta STX KL12
We haven't collected enough community discussion about this tire yet.
Tire B
Positive
Toyo Proxes Sport
Community opinion on the Toyo Proxes Sport line (including Sport 2 and A/S variants) is largely positive, praised for great value, quiet ride, and solid performance. However, some users note a lack of long-term reviews for newer iterations like the Sport 2, and others seek specific fitment details like load ratings and efficiency impacts.
r/TyreReviews
·17 upvotes ·2026-08-27
“Toyo Proxes Sport 2 Really enjoyed these Proxes Sport 2s on my Alpina over the last year - in fact they’re so good I’ve put them on the B3 too! Great value for money. Read more”
r/tires
·2 upvotes ·2026-08-09
“I have real world experience with the Toyo Proxes Sport AS+. This may be the best all around tire on the planet IMO. I'm old and so I've tried multiple tires in real world conditions as a daily driver with performance in mind. I know every Michelin and Pirelli. I've become an expert on available tires in the USA.. What you will find with This tire: * They are immediately quiet *Resist hydroplaning in big water * Higher than expected dry performance in super hot weather for an AS * Maintain tread pattern to the death and remain quiet. These tires are next level.”
Top themes
#Value for money#Dry and wet performance#Noise levels and comfort#All-season vs summer options#Limited early reviews#Load rating and sizing
Based on 12 community posts
Specifications
Specs side by side
| Attribute | A · Kumho Ecsta STX KL12 | B · Toyo Proxes Sport |
|---|---|---|
| Category | Summer High Performance tires | Summer Premium Touring tires |
| Vehicle type | SUV and 4x4 | Passenger Car / Crossover |
| Sizes available | 7 | 1 |
| Rim diameters | 18″ – 22″ | 18″ |
| Tread depth | 11.5/32″ | 9.3/32″ |
| UTQG | 420 A A | 240 A A |
| Treadwear warranty | — | 25,000 mi |
| Sidewall | Blackwall | Blackwall |
| Max pressure | 50 psi | 50 psi |
Final verdict
Which one should you actually buy?
83
/ 100
Kumho
71
/ 100
Toyo
Winner: Kumho Ecsta STX KL12 — better comfort, noise and dry. Pick the Toyo Proxes Sport if handling matters most to you.
Pick tire A
You want the most comfortable ride
Kumho Ecsta STX KL12 scores 89 vs 56 on comfort.
Pick tire A
You want a quieter cabin
Kumho Ecsta STX KL12 scores 92 vs 70 on noise.
Pick tire A
You want the most grip on dry roads
Kumho Ecsta STX KL12 scores 91 vs 76 on dry.
Pick tire A
You want the longest tread life
Kumho Ecsta STX KL12 scores 83 vs 71 on treadwear.
Tire A · Kumho Ecsta STX KL12
Tire B · Toyo Proxes Sport
More comparisons
Also compared with
Kumho Ecsta STX KL12 also compared with
Toyo Proxes 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.