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Summer tire Summer High Performance tires Updated May 2026

Kumho Ecsta STX KL12 review

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.

Relative score
83/100
tests + owners
Owner reviews
86/100
15 reviews
Kumho Ecsta STX KL12
Scores

Two scoring systems, side by side

Owner scores come from reviews on retailer and review sites; road-test scores come from instrumented tests. Where they disagree, it is usually a discipline owners rarely push to the limit.

By owner reviews

85.6%
Would buy again 63%
Dry
Overall dry
91.4%
Corner stability
60%
Dry traction
70%
Steering response
63%
Wet
Overall wet
81.4%
Wet traction
47%
Snow & ice
Overall snow & ice
87.3%
Comfort
Overall comfort
89.4%
Noise
Overall noise
91.7%
Treadwear
Overall treadwear
83.4%
Handling
Overall handling
60%
From owners

What owners like and dislike

Themes extracted from 15 owner reviews across retailers and review sites.

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

Worth knowing

  • 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.
Where to buy

Kumho Ecsta STX KL12 specs & sizes

Prices vary by size, so each one links out separately.

Specifications
Tread depth11.5/32″
UTQG420 A A
SidewallBlackwall
Max pressure50 psi

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Head-to-head

Kumho Ecsta STX KL12 compared

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