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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 Solus TA31 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 78 + 11 owner reviews. How we score

Proxes RA1 is ahead, 66–58

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Kumho Solus TA31
Tire AKumho

Solus TA31

All Season

Tests – · none yet Owners 52 · 78 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. 58

    Dry

    Proxes RA1 +17
    75
    Why this score
    SourceSolus TA31Proxes RA1
    Professional tests (TWG score)≈ 61 (est.)≈ 72 (est.)
    Reviews found online5279

    Solus TA31: 60% × 61.3 (est.) + 40% × 51.8 = 58

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

    No road tests of dry for Solus TA31. 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. 60

    Wet

    Proxes RA1 +4
    64
    Why this score
    SourceSolus TA31Proxes RA1
    Professional tests (TWG score)≈ 63 (est.)≈ 65 (est.)
    Reviews found online5761

    Solus TA31: 60% × 62.5 (est.) + 40% × 56.8 = 60

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

    No road tests of wet for Solus TA31. 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. 53

    Snow

    Solus TA31 +4
    49
    Why this score
    SourceSolus TA31Proxes RA1
    Professional tests (TWG score)≈ 60 (est.)≈ 58 (est.)
    Reviews found online4134

    Solus TA31: 60% × 60.4 (est.) + 40% × 41.1 = 53

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

    No road tests of snow for Solus TA31. 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. 62

    Comfort

    Proxes RA1 +5
    67
    Why this score
    SourceSolus TA31Proxes RA1
    Professional tests (TWG score)≈ 67 (est.)≈ 69 (est.)
    Reviews found online5566

    Solus TA31: 60% × 66.6 (est.) + 40% × 54.6 = 62

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

    No road tests of comfort for Solus TA31 or Proxes RA1. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 65

    Noise

    Proxes RA1 +3
    68
    Why this score
    SourceSolus TA31Proxes RA1
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online6170

    Solus TA31: 60% × 67.3 (est.) + 40% × 60.6 = 65

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

    No road tests of noise for Solus TA31 or Proxes RA1. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 57

    Treadwear

    Proxes RA1 +10
    67
    Why this score
    SourceSolus TA31Proxes RA1
    Professional tests (TWG score)≈ 61 (est.)≈ 66 (est.)
    Reviews found online5268

    Solus TA31: 60% × 61.3 (est.) + 40% × 51.7 = 57

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

    No road tests of treadwear for Solus TA31. 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. 51

    Handling (owners)

    Proxes RA1 +22
    73
    Why this score
    SourceSolus TA31Proxes RA1
    Reviews found online5173
Scores at a glance
CategoryKumho Solus TA31Toyo Proxes RA1
Relative Score 58 66
Dry 58 75
Wet 60 64
Snow 53 49
Comfort 62 67
Noise 65 68
Treadwear 57 67
Handling (owners) 51 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
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
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Recomputed
Headline score

Solus TA31

Proxes RA1

Pros, cons & observations

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

Tire A Solus TA31

Pros

  • Exceptional value and budget-friendly pricing
  • Very low road noise and a comfortable, smooth ride
  • Good dry and wet traction for everyday commuting

Cons

  • Poor performance in snow and ice conditions
  • Soft sidewalls leading to reduced high-speed stability and less sharp handling
  • Inconsistent tread wear reported by some users, leading to premature replacement
All owner themes in the Solus TA31 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 Solus TA31 B · Toyo Proxes RA1
CategoryAll SeasonSummer Trackday and Competition tires
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available227
Rim diameters15″ – 20″15″ – 18″
Tread depth9.5/32″8/32″
UTQG500 A A100 AA A
Treadwear warranty60,000 mi—
SidewallBlackwallBlack Side Wall
Max pressure44 psi44 psi
Sizes in common00

Which one should you actually buy?

Kumho Solus TA31

Toyo Proxes RA1

Winner: Toyo Proxes RA1 — better handling, dry and treadwear. Pick the Kumho Solus TA31 if snow matters most to you. Toyo Proxes RA1 rests on little evidence so far (0 tests, 11 reviews), so read this result as provisional.

Pick tire B You enjoy sharp, responsive handling

Toyo Proxes RA1 scores 73 vs 51 on handling.

Pick tire B You want the most grip on dry roads

Toyo Proxes RA1 scores 75 vs 58 on dry.

Pick tire B You want the longest tread life

Toyo Proxes RA1 scores 67 vs 57 on treadwear.

Pick tire B You want the most comfortable ride

Toyo Proxes RA1 scores 67 vs 62 on comfort.

Tire A · Kumho Solus TA31
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Tire B · Toyo Proxes RA1
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Solus TA31 or Proxes RA1?

Which is better in the wet, Solus TA31 or Proxes RA1?

Toyo Proxes RA1, 64 vs 60 on our wet score.

Which grips better on dry roads, Solus TA31 or Proxes RA1?

Toyo Proxes RA1, 75 vs 58 on our dry score.

Which is better in snow, Solus TA31 or Proxes RA1?

Kumho Solus TA31, 53 vs 49 on our snow score.

Which is quieter, Solus TA31 or Proxes RA1?

Toyo Proxes RA1, 68 vs 65 on our noise score.

Which is more comfortable, Solus TA31 or Proxes RA1?

Toyo Proxes RA1, 67 vs 62 on our comfort score.

Which lasts longer, Solus TA31 or Proxes RA1?

Toyo Proxes RA1, 67 vs 57 on our treadwear score.

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