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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 Crugen HT51 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 1 + 0 road tests and 164 + 11 owner reviews. How we score

Crugen HT51 is ahead, 72–66

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Kumho Crugen HT51
Tire AKumho

Crugen HT51

All Season

Tests – · 1 test Owners 75 · 164 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. 73

    Dry

    Proxes RA1 +2
    75
    Why this score
    SourceCrugen HT51Proxes RA1
    Professional tests (TWG score)≈ 71 (est.)≈ 72 (est.)
    Reviews found online7779

    Crugen HT51: 60% × 71.3 (est.) + 40% × 76.5 = 73

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

    No road tests of dry for Crugen HT51. 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. 75

    Wet

    Crugen HT51 +11
    64
    Why this score
    SourceCrugen HT51Proxes RA1
    Professional tests (TWG score)≈ 74 (est.)≈ 65 (est.)
    Reviews found online7761

    Crugen HT51: 60% × 73.8 (est.) + 40% × 76.9 = 75

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

    No road tests of wet for Crugen HT51. 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. 70

    Snow

    Crugen HT51 +21
    49
    Why this score
    SourceCrugen HT51Proxes RA1
    Professional tests (TWG score)≈ 70 (est.)≈ 58 (est.)
    Reviews found online7034

    Crugen HT51: 60% × 69.8 (est.) + 40% × 69.6 = 70

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

    No road tests of snow for Crugen HT51. 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. 71

    Comfort

    Crugen HT51 +4
    67
    Why this score
    SourceCrugen HT51Proxes RA1
    Professional tests (TWG score)≈ 70 (est.)≈ 69 (est.)
    Reviews found online7266

    Crugen HT51: 60% × 69.7 (est.) + 40% × 72.2 = 71

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

    No road tests of comfort for Crugen HT51 or Proxes RA1. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 72

    Noise

    Crugen HT51 +4
    68
    Why this score
    SourceCrugen HT51Proxes RA1
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online7870

    Crugen HT51: 60% × 67.3 (est.) + 40% × 78.3 = 72

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

    No road tests of noise for Crugen HT51 or Proxes RA1. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 64

    Treadwear

    Proxes RA1 +3
    67
    Why this score
    SourceCrugen HT51Proxes RA1
    Professional tests (TWG score) · 1 / – tests58≈ 66 (est.)
    Reviews found online7468

    Crugen HT51: 60% × 57.7 + 40% × 74.1 = 64

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

    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. 75

    Handling (owners)

    Crugen HT51 +2
    73
    Why this score
    SourceCrugen HT51Proxes RA1
    Reviews found online7573
Scores at a glance
CategoryKumho Crugen HT51Toyo Proxes RA1
Relative Score 72 66
Dry 73 75
Wet 75 64
Snow 70 49
Comfort 71 67
Noise 72 68
Treadwear 64 67
Handling (owners) 75 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

Crugen HT51

Proxes RA1

Pros, cons & observations

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

Tire A Crugen HT51

Pros

  • Exceptional value and lower price point compared to premium competitors
  • Smooth, quiet, and comfortable highway ride
  • Strong dry, wet, and winter/snow traction

Cons

  • Slightly vague or 'squishy' steering feel/sidewall stiffness compared to some OEM tires
  • Potential negative impact on fuel economy (decreased MPG for some truck owners)
  • Occasional reports of accelerated shoulder wear or balancing issues
All owner themes in the Crugen HT51 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 Crugen HT51 B · Toyo Proxes RA1
CategoryAll SeasonSummer Trackday and Competition tires
Vehicle typeSUV and 4x4Passenger Car / Crossover
Sizes available447
Rim diameters15″ – 22″15″ – 18″
Tread depth12.5/32″8/32″
UTQG720 A A100 AA A
Treadwear warranty70,000 mi—
SidewallBlackwallBlack Side Wall
Max pressure50 psi44 psi
Sizes in common00

Which one should you actually buy?

Kumho Crugen HT51

Toyo Proxes RA1

Winner: Kumho Crugen HT51 — better snow, wet and comfort. Pick the Toyo Proxes RA1 if treadwear 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 A You drive through snowy winters

Kumho Crugen HT51 scores 70 vs 49 on snow.

Pick tire A Your priority is wet-weather safety

Kumho Crugen HT51 scores 75 vs 64 on wet.

Pick tire A You want the most comfortable ride

Kumho Crugen HT51 scores 71 vs 67 on comfort.

Pick tire A You want a quieter cabin

Kumho Crugen HT51 scores 72 vs 68 on noise.

Tire A · Kumho Crugen HT51
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Tire B · Toyo Proxes RA1
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Crugen HT51 or Proxes RA1?

Which is better in the wet, Crugen HT51 or Proxes RA1?

Kumho Crugen HT51, 75 vs 64 on our wet score.

Which grips better on dry roads, Crugen HT51 or Proxes RA1?

Neither, by our numbers: 73 vs 75 on the dry score, within 3 points.

Which is better in snow, Crugen HT51 or Proxes RA1?

Kumho Crugen HT51, 70 vs 49 on our snow score.

Which is quieter, Crugen HT51 or Proxes RA1?

Kumho Crugen HT51, 72 vs 68 on our noise score.

Which is more comfortable, Crugen HT51 or Proxes RA1?

Kumho Crugen HT51, 71 vs 67 on our comfort score.

Which lasts longer, Crugen HT51 or Proxes RA1?

Toyo Proxes RA1, 67 vs 64 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