Relative Score (0–100): 60% professional tests, 40% owner reviews.
Ecsta PS31 leads, 65–63 Narrow edge
Both Amazon links then search this exact size.
TireWheelGuide may earn a commission from purchases made through these links.
Tests 71 · 6 tests Owners 56 · 5,797 reviews
“Quote: Originally Posted by ProjectBoost Yeah and the Bridgestone's should be replaced too. +1 Bridgestone Potenza S001 are near the bottom of all run flat tires. If you prefer run flat tires, Pirelli P Zero are much better.”
Tests – · none yet Owners 64 · 259 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Potenza S001 | Ecsta PS31 |
|---|---|---|
| Professional tests (TWG score) | 79 | – |
| Reviews found online | 63 | 63 |
| Source | Potenza S001 | Ecsta PS31 |
|---|---|---|
| Professional tests (TWG score) | 84 | – |
| Reviews found online | 62 | 68 |
| Source | Potenza S001 | Ecsta PS31 |
|---|---|---|
| Reviews found online | 39 | 49 |
| Source | Potenza S001 | Ecsta PS31 |
|---|---|---|
| Professional tests (TWG score) | 63 | – |
| Reviews found online | 52 | 65 |
| Source | Potenza S001 | Ecsta PS31 |
|---|---|---|
| Professional tests (TWG score) | 48 | – |
| Reviews found online | 58 | 66 |
| Source | Potenza S001 | Ecsta PS31 |
|---|---|---|
| Professional tests (TWG score) | 58 | – |
| Reviews found online | 49 | 65 |
| Source | Potenza S001 | Ecsta PS31 |
|---|---|---|
| Reviews found online | 61 | 67 |
| Category | Bridgestone Potenza S001 | Kumho Ecsta PS31 |
|---|---|---|
| Relative Score | 63 | 65 |
| Dry | 72 | 64 |
| Wet | 75 | 69 |
| Snow | 51 | 57 |
| Comfort | 59 | 67 |
| Noise | 52 | 66 |
| Treadwear | 54 | 65 |
| Handling | 61 | 67 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Potenza S001
Ecsta PS31
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
Community opinion on the Bridgestone Potenza S001 is divided, with some users praising their dry grip and stability, while many others criticize their rapid wear, stiffness (especially run-flat variants), noise, and cracking issues. Owners frequently compare them unfavorably to alternatives like Michelin or Pirelli, though budget-friendly deals tend to draw occasional interest.
“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”
“Replacing Bridgestone Potenza s001 RunFlats with Primacy 5 vs. PS5. Suggestions? I drive a VW Jetta which only has 160 Hp. I do occasionally really enjoy some spirited driving or taking aggressive turns. My considerations are that I do really care about Comfort and road noise and so that leads me towards the Primacy 5. At the same time, I don't think the power of my car justifies the PS5. My question is basically, I've online that for runflats to be runflats they have really stiff sidewalls, which might be contributing to the current feel of my car and I wonder if, even though everything else about the Potenza s001 is quite worse compared to the Primacy 5, I wonder if I will miss the stiff sidewall? And just because of that should I consider the PS5?”
“I put the Potenza S001 tires on the rear of my i3s with that Tire Rack deal but I didn't think they would fit on the 5.5 inch rims. I think the rears are 6.0".”
Based on 16 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Bridgestone Potenza S001 | B · Kumho Ecsta PS31 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 55 | 21 |
| Rim diameters | 15″ – 21″ | 15″ – 18″ |
| Tread depth | 8/32″ | 10/32″ |
| UTQG | 280 A A | 460 A A |
| Sidewall | Blackwall | Blackwall |
| Max pressure | 50 psi | 51 psi |
Bridgestone Potenza S001
Kumho Ecsta PS31
Winner: Kumho Ecsta PS31 — better noise, treadwear and comfort. Pick the Bridgestone Potenza S001 if dry and wet matter most to you.
Kumho Ecsta PS31 scores 66 vs 52 on noise.
Kumho Ecsta PS31 scores 65 vs 54 on treadwear.
Bridgestone Potenza S001 scores 72 vs 64 on dry.
Kumho Ecsta PS31 scores 67 vs 59 on comfort.
TireWheelGuide may earn a commission from purchases made through these links.
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.
Community buzz from Reddit and forums is shown for context only — it never changes the score.
