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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 S001 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 6 + 0 road tests and 5,807 + 11 owner reviews. How we score

Too close to call: Potenza S001 65, Proxes RA1 66.

Check price on Amazon · Potenza S001 Check price on Amazon · Proxes RA1
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Bridgestone Potenza S001
Tire ABridgestone

Potenza S001

Summer

Tests 72 · 6 tests Owners 55 · 5,807 reviews

Best test result: #1 of 20 in 2020 Auto Bild Summer Tyre Test (wet braking)

“Had a set of run flats for a brief period, heavy tires, very stiff sidewalls, wouldn't run them again.. .”

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
    SourcePotenza S001Proxes RA1
    Professional tests (TWG score) · 4 / – tests79≈ 72 (est.)
    Reviews found online6379

    Potenza S001: 60% × 79.1 + 40% × 62.7 = 73

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

    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. 76

    Wet

    Potenza S001 +12
    64
    Why this score
    SourcePotenza S001Proxes RA1
    Professional tests (TWG score) · 4 / – tests84≈ 65 (est.)
    Reviews found online6261

    Potenza S001: 60% × 84.4 + 40% × 62.3 = 76

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

    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. 51

    Snow

    Potenza S001 +2
    49
    Why this score
    SourcePotenza S001Proxes RA1
    Professional tests (TWG score)≈ 59 (est.)≈ 58 (est.)
    Reviews found online3834

    Potenza S001: 60% × 59.2 (est.) + 40% × 37.6 = 51

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

    No road tests of snow for Potenza S001. 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. 58

    Comfort

    Proxes RA1 +9
    67
    Why this score
    SourcePotenza S001Proxes RA1
    Professional tests (TWG score) · 1 / – tests63≈ 69 (est.)
    Reviews found online5166

    Potenza S001: 60% × 63.3 + 40% × 51.1 = 58

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

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

  5. 57

    Noise

    Proxes RA1 +11
    68
    Why this score
    SourcePotenza S001Proxes RA1
    Professional tests (TWG score) · 3 / – tests56≈ 67 (est.)
    Reviews found online5970

    Potenza S001: 60% × 55.7 + 40% × 58.6 = 57

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

    No road tests of noise for 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 S001Proxes RA1
    Professional tests (TWG score) · 3 / – tests58≈ 66 (est.)
    Reviews found online4868

    Potenza S001: 60% × 58 + 40% × 48.4 = 54

    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. 61

    Handling (owners)

    Proxes RA1 +12
    73
    Why this score
    SourcePotenza S001Proxes RA1
    Reviews found online6173
Scores at a glance
CategoryBridgestone Potenza S001Toyo Proxes RA1
Relative Score 65 66
Dry 73 75
Wet 76 64
Snow 51 49
Comfort 58 67
Noise 57 68
Treadwear 54 67
Handling (owners) 61 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
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Neutral
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Less important
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Neutral
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Less important
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Recomputed
Headline score

Potenza S001

Proxes RA1

Pros, cons & observations

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

Tire A Potenza S001

Pros

  • Precise and sharp steering response
  • Strong dry-pavement cornering grip
  • Stiff sidewalls providing robust rim protection and high-speed stability

Cons

  • High levels of road noise and cabin drone
  • Stiff, harsh ride quality (particularly noticeable on run-flat versions)
  • Poor or unpredictable wet-weather grip and sudden loss of traction
All owner themes in the Potenza S001 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 S001

Mixed

Community sentiment regarding the Bridgestone Potenza S001 is predominantly mixed to negative, particularly concerning the run-flat variants. Drivers frequently report stiff sidewalls, harsh ride quality, road noise, premature wear, and tread cracking, leading many to switch to non-run-flat alternatives like Michelin. However, several owners find them adequate for spirited driving, citing satisfactory dry and wet grip as well as acceptable ride comfort on specific vehicle setups.

r/CarTalkUK ·2 upvotes ·2023-11-15

“Brand New Bridgestone Potenza S001 Tyres worn after 10k mileage? So I got 4 brand new tyres last June from Costco, 255/35 R19. I only drive locally, occasional trips to another city. 10k mileage later, my front two tyres flagged up on my recent MOT as : Nearside Front Tyre worn close to legal limit/worn on edge CHANGE ASAP (5.2.3 (e)) Offside Front Tyre worn close to legal limit/worn on edge EDGED (5.2.3 (e)) Seems surprising to me as I don't drive crazy, occasional spirited driving. 2011 Audi s5. is this normal? Thinking of getting another brand this time for the front two tyres. Car is a quattro but same types on same axis should suffice? Any recommendations on tyres? Read more”
mybmwi3.com ·2026-03-31

“I run the Bridgestone Potenza S001 Ultra-High Summer Peformance Tire 215/45R/20s on the rear and 195s on the front. They ride softer than stock tires. Not cheap tho.​”
bimmerfest.com ·2012-02-16

“Thanks for the comments. I'm not sure a paltry $3m fine will move BMW to more or quicker recalls. It's just a drop in the bucket for them. In this case too, BMW has yet to accept any responsibility for the tire issues and has put it all on Goodyear for warranty and replacement. This is the sort of BS thing I am expecting to happen, although unlike the LS2's, I have been assured that there are no Excellence tires to be had anywhere. I just hope they do the right thing here. The latest issue of Roundel reviews the new F30 and they claim the new Bridgestone Potenza S001 uses "third generation run-flat technology", whatever that is, and say its a great tire. I called around though, and no tire dealers even have that tire in their system yet.”
Top themes
#run-flat stiffness and harshness#premature tread wear#tread cracking issues#wet and dry grip#switching to non-run-flats#road noise generation#OEM tire replacement

Based on 43 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 S001 B · Toyo Proxes RA1
CategorySummerSummer Trackday and Competition tires
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available557
Rim diameters15″ – 21″15″ – 18″
Tread depth8/32″8/32″
UTQG280 A A100 AA A
SidewallBlackwallBlack Side Wall
Max pressure50 psi44 psi
Sizes in common00

Which one should you actually buy?

Bridgestone Potenza S001

Toyo Proxes RA1

Too close to call: Bridgestone Potenza S001 and Toyo Proxes RA1 are within 2 points overall. Bridgestone Potenza S001 is stronger on wet. Toyo Proxes RA1 is stronger on treadwear, handling and noise. 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 longest tread life

Toyo Proxes RA1 scores 67 vs 54 on treadwear.

Pick tire A Your priority is wet-weather safety

Bridgestone Potenza S001 scores 76 vs 64 on wet.

Pick tire B You enjoy sharp, responsive handling

Toyo Proxes RA1 scores 73 vs 61 on handling.

Pick tire B You want a quieter cabin

Toyo Proxes RA1 scores 68 vs 57 on noise.

Tire A · Bridgestone Potenza S001
Check price on Amazon
Tire B · Toyo Proxes RA1
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Potenza S001 or Proxes RA1?

Which is better in the wet, Potenza S001 or Proxes RA1?

Bridgestone Potenza S001, 76 vs 64 on our wet score.

Which grips better on dry roads, Potenza S001 or Proxes RA1?

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

Which is better in snow, Potenza S001 or Proxes RA1?

Neither, by our numbers: 51 vs 49 on the snow score, within 3 points.

Which is quieter, Potenza S001 or Proxes RA1?

Toyo Proxes RA1, 68 vs 57 on our noise score.

Which is more comfortable, Potenza S001 or Proxes RA1?

Toyo Proxes RA1, 67 vs 58 on our comfort score.

Which lasts longer, Potenza S001 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