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Toyo Proxes RA1 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Kumho Ecsta PS31 vs Toyo Proxes RA1 — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 0 road tests and 259 + 11 owner reviews. How we score

Too close to call: Ecsta PS31 65, Proxes RA1 66.

Check price on Amazon · Ecsta PS31 Check price on Amazon · Proxes RA1
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Kumho Ecsta PS31
Tire AKumho

Ecsta PS31

Summer

Tests – · none yet Owners 63 · 259 reviews

Toyo Proxes RA1
Tire BToyo

Proxes RA1

Summer Trackday and Competition tires

Provisional

Tests – · none yet Owners 65 · 11 reviews

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 65

    Dry

    Proxes RA1 +10
    75
    Why this score
    SourceEcsta PS31Proxes RA1
    Professional tests (TWG score)≈ 66 (est.)≈ 72 (est.)
    Reviews found online6379

    Ecsta PS31: 60% × 65.9 (est.) + 40% × 63.1 = 65

    Proxes RA1: 60% × 72.1 (est.) + 40% × 78.5 = 75

    No road tests of dry for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

    No road tests of dry for Proxes RA1. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

  2. 68

    Wet

    Ecsta PS31 +4
    64
    Why this score
    SourceEcsta PS31Proxes RA1
    Professional tests (TWG score)≈ 69 (est.)≈ 65 (est.)
    Reviews found online6861

    Ecsta PS31: 60% × 68.8 (est.) + 40% × 68 = 68

    Proxes RA1: 60% × 65 (est.) + 40% × 61.3 = 64

    No road tests of wet for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

    No road tests of wet for Proxes RA1. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

  3. 57

    Snow

    Ecsta PS31 +8
    49
    Why this score
    SourceEcsta PS31Proxes RA1
    Professional tests (TWG score)≈ 63 (est.)≈ 58 (est.)
    Reviews found online4934

    Ecsta PS31: 60% × 62.9 (est.) + 40% × 48.8 = 57

    Proxes RA1: 60% × 58.2 (est.) + 40% × 34.4 = 49

    No road tests of snow for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

    No road tests of snow for Proxes RA1. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

  4. 67

    Comfort

    Level
    67
    Why this score
    SourceEcsta PS31Proxes RA1
    Professional tests (TWG score)≈ 68 (est.)≈ 69 (est.)
    Reviews found online6566

    Ecsta PS31: 60% × 68.4 (est.) + 40% × 65 = 67

    Proxes RA1: 60% × 68.5 (est.) + 40% × 65.7 = 67

    No road tests of comfort for Ecsta PS31 or Proxes RA1. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 67

    Noise

    Proxes RA1 +1
    68
    Why this score
    SourceEcsta PS31Proxes RA1
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online6770

    Ecsta PS31: 60% × 67.3 (est.) + 40% × 67 = 67

    Proxes RA1: 60% × 67.3 (est.) + 40% × 70.1 = 68

    No road tests of noise for Ecsta PS31 or Proxes RA1. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 65

    Treadwear

    Proxes RA1 +2
    67
    Why this score
    SourceEcsta PS31Proxes RA1
    Professional tests (TWG score)≈ 65 (est.)≈ 66 (est.)
    Reviews found online6568

    Ecsta PS31: 60% × 65.3 (est.) + 40% × 64.7 = 65

    Proxes RA1: 60% × 66.2 (est.) + 40% × 67.6 = 67

    No road tests of treadwear for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

    No road tests of treadwear for Proxes RA1. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

  7. 67

    Handling (owners)

    Proxes RA1 +6
    73
    Why this score
    SourceEcsta PS31Proxes RA1
    Reviews found online6773
Scores at a glance
CategoryKumho Ecsta PS31Toyo Proxes RA1
Relative Score 65 66
Dry 65 75
Wet 68 64
Snow 57 49
Comfort 67 67
Noise 67 68
Treadwear 65 67
Handling (owners) 67 73

Higher is better. The Relative Score follows your weights below; category scores do not change.

Weight the categories that matter to you

Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.

Important
NotLessNeutralImportantMost
Important
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Neutral
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Less important
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Neutral
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Recomputed
Headline score

Ecsta PS31

Proxes RA1

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Ecsta PS31

Pros

  • Excellent price-to-performance ratio
  • High levels of ride comfort and low road noise
  • Strong dry traction for daily and spirited street driving

Cons

  • Soft sidewalls lead to vague steering response and 'squirm' during aggressive maneuvers
  • Inconsistent wet weather performance reported by some users, particularly in deep standing water
  • Tread life can be shorter than expected for some driving styles
All owner themes in the Ecsta PS31 review

Tire B Proxes RA1

Pros

  • Exceptional dry grip that remains consistent even as the tread wears down.
  • Superior tire life compared to many other dedicated track-focused compounds.
  • Predictable breakaway characteristics that provide driver confidence at the limit.

Cons

  • Performance can become 'greasy' if the tire is overdriven or overheated during long sessions.
  • Requires proper heat cycling and break-in procedures to achieve optimal performance.
  • Sensitive to alignment settings, which can lead to accelerated or uneven wear if not managed.
All owner themes in the Proxes RA1 review

Specs side by side

Attribute A · Kumho Ecsta PS31 B · Toyo Proxes RA1
CategorySummerSummer Trackday and Competition tires
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available217
Rim diameters15″ – 18″15″ – 18″
Tread depth10/32″8/32″
UTQG460 A A100 AA A
SidewallBlackwallBlack Side Wall
Max pressure51 psi44 psi
Sizes in common00

Which one should you actually buy?

Kumho Ecsta PS31

Toyo Proxes RA1

Too close to call: Kumho Ecsta PS31 and Toyo Proxes RA1 are within 2 points overall. Kumho Ecsta PS31 is stronger on snow and wet. Toyo Proxes RA1 is stronger on dry and handling. Toyo Proxes RA1 rests on little evidence so far (0 tests, 11 reviews), so read this result as provisional.

Pick tire B You want the most grip on dry roads

Toyo Proxes RA1 scores 75 vs 65 on dry.

Pick tire A You drive through snowy winters

Kumho Ecsta PS31 scores 57 vs 49 on snow.

Pick tire B You enjoy sharp, responsive handling

Toyo Proxes RA1 scores 73 vs 67 on handling.

Pick tire A Your priority is wet-weather safety

Kumho Ecsta PS31 scores 68 vs 64 on wet.

Tire A · Kumho Ecsta PS31
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Tire B · Toyo Proxes RA1
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Ecsta PS31 or Proxes RA1?

Which is better in the wet, Ecsta PS31 or Proxes RA1?

Kumho Ecsta PS31, 68 vs 64 on our wet score.

Which grips better on dry roads, Ecsta PS31 or Proxes RA1?

Toyo Proxes RA1, 75 vs 65 on our dry score.

Which is better in snow, Ecsta PS31 or Proxes RA1?

Kumho Ecsta PS31, 57 vs 49 on our snow score.

Which is quieter, Ecsta PS31 or Proxes RA1?

Neither, by our numbers: 67 vs 68 on the noise score, within 3 points.

Which is more comfortable, Ecsta PS31 or Proxes RA1?

Neither, by our numbers: 67 vs 67 on the comfort score, within 3 points.

Which lasts longer, Ecsta PS31 or Proxes RA1?

Neither, by our numbers: 65 vs 67 on the treadwear score, within 3 points.

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.

Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.

Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology