Tests – · none yet Owners 47 · 49 reviews
Bridgestone Potenza RE040 vs Kumho Ecsta PS31 — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Ecsta PS31 is ahead, 65–55
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Tests – · none yet Owners 64 · 259 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
58
Dry
Ecsta PS31 +664Why this score
Source Potenza RE040 Ecsta PS31 Reviews found online 52 63 -
54
Wet
Ecsta PS31 +1569Why this score
Source Potenza RE040 Ecsta PS31 Reviews found online 48 68 -
50
Snow
Ecsta PS31 +757Why this score
Source Potenza RE040 Ecsta PS31 Reviews found online 37 49 -
56
Comfort
Ecsta PS31 +1167Why this score
Source Potenza RE040 Ecsta PS31 Reviews found online 42 65 -
56
Noise
Ecsta PS31 +1066Why this score
Source Potenza RE040 Ecsta PS31 Reviews found online 40 66 -
55
Treadwear
Ecsta PS31 +1065Why this score
Source Potenza RE040 Ecsta PS31 Reviews found online 47 65 -
53
Handling
Ecsta PS31 +1467Why this score
Source Potenza RE040 Ecsta PS31 Reviews found online 53 67
Scores at a glance
| Category | Bridgestone Potenza RE040 | Kumho Ecsta PS31 |
|---|---|---|
| Relative Score | 55 | 65 |
| Dry | 58 | 64 |
| Wet | 54 | 69 |
| Snow | 50 | 57 |
| Comfort | 56 | 67 |
| Noise | 56 | 66 |
| Treadwear | 55 | 65 |
| Handling | 53 | 67 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Potenza RE040
Ecsta PS31
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Potenza RE040
Pros
- Excellent dry weather grip and handling
- High level of steering feedback and directness
- Progressive and predictable breakaway characteristics
Cons
- Excessive and intrusive road noise
- Poor performance and lack of confidence in wet or cold conditions
- Harsh ride quality due to stiff construction
Tire B Ecsta PS31
Pros
- Excellent price-to-performance ratio
- High levels of ride comfort and low road noise
- Strong dry traction for daily and spirited street driving
Cons
- Soft sidewalls lead to vague steering response and 'squirm' during aggressive maneuvers
- Inconsistent wet weather performance reported by some users, particularly in deep standing water
- Tread life can be shorter than expected for some driving styles
Specs side by side
| Attribute | A · Bridgestone Potenza RE040 | B · Kumho Ecsta PS31 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 3 | 21 |
| Rim diameters | 16″ – 18″ | 15″ – 18″ |
| Tread depth | 10/32″ | 10/32″ |
| UTQG | 140 A A | 460 A A |
| Sidewall | Blackwall | Blackwall |
| Max pressure | — | 51 psi |
Which one should you actually buy?
Bridgestone Potenza RE040
Kumho Ecsta PS31
Winner: Kumho Ecsta PS31 — better wet, handling and comfort. It leads or ties in every category we score.
Kumho Ecsta PS31 scores 69 vs 54 on wet.
Kumho Ecsta PS31 scores 67 vs 53 on handling.
Kumho Ecsta PS31 scores 67 vs 56 on comfort.
Kumho Ecsta PS31 scores 66 vs 56 on noise.
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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.
Community buzz from Reddit and forums is shown for context only — it never changes the score.