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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

Bridgestone Potenza RE050A 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 2,182 + 11 owner reviews. How we score

Proxes RA1 is ahead, 66–59

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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. 63

    Dry

    Proxes RA1 +12
    75
    Why this score
    SourcePotenza RE050AProxes RA1
    Professional tests (TWG score)≈ 65 (est.)≈ 72 (est.)
    Reviews found online6179

    Potenza RE050A: 60% × 65 (est.) + 40% × 60.9 = 63

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

    No road tests of dry for Potenza RE050A. 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
    SourcePotenza RE050AProxes RA1
    Professional tests (TWG score)≈ 63 (est.)≈ 65 (est.)
    Reviews found online5761

    Potenza RE050A: 60% × 62.6 (est.) + 40% × 56.9 = 60

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

    No road tests of wet for Potenza RE050A. 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

    Potenza RE050A +8
    49
    Why this score
    SourcePotenza RE050AProxes RA1
    Professional tests (TWG score)≈ 63 (est.)≈ 58 (est.)
    Reviews found online4934

    Potenza RE050A: 60% × 62.9 (est.) + 40% × 48.8 = 57

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

    No road tests of snow for Potenza RE050A. 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. 56

    Comfort

    Proxes RA1 +11
    67
    Why this score
    SourcePotenza RE050AProxes RA1
    Professional tests (TWG score)≈ 65 (est.)≈ 69 (est.)
    Reviews found online4466

    Potenza RE050A: 60% × 64.7 (est.) + 40% × 43.5 = 56

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

    No road tests of comfort for Potenza RE050A or Proxes RA1. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 63

    Noise

    Proxes RA1 +5
    68
    Why this score
    SourcePotenza RE050AProxes RA1
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online5770

    Potenza RE050A: 60% × 67.3 (est.) + 40% × 57 = 63

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

    No road tests of noise for Potenza RE050A or Proxes RA1. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 54

    Treadwear

    Proxes RA1 +13
    67
    Why this score
    SourcePotenza RE050AProxes RA1
    Professional tests (TWG score)≈ 59 (est.)≈ 66 (est.)
    Reviews found online4568

    Potenza RE050A: 60% × 59.4 (est.) + 40% × 45.3 = 54

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

    No road tests of treadwear for Potenza RE050A. 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. 57

    Handling (owners)

    Proxes RA1 +16
    73
    Why this score
    SourcePotenza RE050AProxes RA1
    Reviews found online5773
Scores at a glance
CategoryBridgestone Potenza RE050AToyo Proxes RA1
Relative Score 59 66
Dry 63 75
Wet 60 64
Snow 57 49
Comfort 56 67
Noise 63 68
Treadwear 54 67
Handling (owners) 57 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
NotLessNeutralImportantMost
Recomputed
Headline score

Potenza RE050A

Proxes RA1

Pros, cons & observations

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

Tire A Potenza RE050A

Pros

  • Phenomenal dry grip and cornering stability
  • Precise steering response and sharp turn-in feedback
  • Stiff sidewalls that enhance sporty handling and provide rim protection

Cons

  • Harsh ride quality and stiff impact absorption, especially over rough roads and potholes
  • Noticeable and escalating road noise as the tires wear
  • Mediocre performance and reduced traction in cold temperatures or wintry conditions
All owner themes in the Potenza RE050A 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

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Bridgestone Potenza RE050A

Mixed

Community sentiment regarding the Bridgestone Potenza RE050A is largely mixed, with drivers acknowledging solid dry grip, responsive handling, and decent wet traction when warm. However, many owners criticize the tire's harsh ride quality, high road noise, fast treadwear, high replacement cost, and complete lack of traction in cold or snowy conditions. Run-flat variants are particularly disliked for their stiff ride and difficulty of repair.

forum.miata.net

“tbear, only have my subjective experience to go by.. Had the RE050A as the OEM tires on by 2008. I could get them to slip and slid at autocross (not on purpose) even with an un-tuned automatic. Have switched to the Michelin Pilot Sport AS all seasons (they have changed the model designations since the last time I purchased but these are not the Pilot Super SPorts) and am finding the ride quieter and very very grippy. Seems like all seasons would be a good choice for the Atlanta area? rakessler”
mbworld.org

“just installed another set, $1180 mounted/balanced. 245/45ZR18 front. 275/40ZR18 rear. factory placard says 28 psi front and 33 psi rear. add 4 psi for sustained high speed. tire placard says 51 psi max. i have been experimenting with pressure and 28 front is a limo smooth ride but destroys the shoulders of the tire. anything less than 35 in the rear and im looking at 15k miles or less for a set. at 40psi front and rear i have seen 27 mpg. at factory specs 28/33 front/rear 24 mpg. has anyone found the "zen" pressure that gives the best of both worlds. im seeking an even # front and rear to make it easy for the wife, im in afghan for 9 months of the year and she has to keep them serviced.”
clublexus.com

“It's been 4 years and 30,000km's and the PS4S tyres have worn up to the wear mark on the back tyres. Any recommendations for a replacement? It's summer all year here. We have hot summer and less hot summer. I went with the PS4S because I found the OEM RE050A's too stiff and the PS4S was definitely softer. I would consider going softer again if there was a good option. For PS4S again it will be 2 x $564 for 235/40R19 and 2 x $610 for 265/35R19 = $2348 AUD or, if I try the new PS5 it is 2 x $374 for 245/40R19 and 2 x 472 for 275/35R19 = $1692 AUD The PS5's are way cheaper and have a tread wear of 340 vs the 300. I have also heard good things about the Falken FK510”
Top themes
#tread life and wear#cold and snow performance#ride comfort and stiffness#dry and wet grip#high replacement cost#run flat complaints#road noise

Based on 76 community posts

Tire B

Toyo Proxes RA1

We haven't collected enough community discussion about this tire yet.

Specs side by side

Attribute A · Bridgestone Potenza RE050A B · Toyo Proxes RA1
CategorySummerSummer Trackday and Competition tires
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available377
Rim diameters15″ – 20″15″ – 18″
Tread depth10/32″8/32″
UTQG140 A A100 AA A
SidewallBlackwallBlack Side Wall
Max pressure50 psi44 psi
Sizes in common22

Which one should you actually buy?

Bridgestone Potenza RE050A

Toyo Proxes RA1

Winner: Toyo Proxes RA1 — better handling, treadwear and dry. Pick the Bridgestone Potenza RE050A 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 57 on handling.

Pick tire B You want the longest tread life

Toyo Proxes RA1 scores 67 vs 54 on treadwear.

Pick tire B You want the most grip on dry roads

Toyo Proxes RA1 scores 75 vs 63 on dry.

Pick tire B You want the most comfortable ride

Toyo Proxes RA1 scores 67 vs 56 on comfort.

Tire A · Bridgestone Potenza RE050A
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Tire B · Toyo Proxes RA1
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Potenza RE050A or Proxes RA1?

Which is better in the wet, Potenza RE050A or Proxes RA1?

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

Which grips better on dry roads, Potenza RE050A or Proxes RA1?

Toyo Proxes RA1, 75 vs 63 on our dry score.

Which is better in snow, Potenza RE050A or Proxes RA1?

Bridgestone Potenza RE050A, 57 vs 49 on our snow score.

Which is quieter, Potenza RE050A or Proxes RA1?

Toyo Proxes RA1, 68 vs 63 on our noise score.

Which is more comfortable, Potenza RE050A or Proxes RA1?

Toyo Proxes RA1, 67 vs 56 on our comfort score.

Which lasts longer, Potenza RE050A or Proxes RA1?

Toyo Proxes RA1, 67 vs 54 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