65
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
65/100
47 owner reviews
Prices change daily — check the retailer for your size.
Head-to-head
Updated May 2026
Bridgestone Potenza RE040 vs Kumho Ecsta PS31 — Compared (May 2026)
Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.
VS
82
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
77/100
258 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Kumho Ecsta PS31 — better comfort, wet and treadwear. It leads or ties in every category we score.
Read full
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Category breakdown
7 categories, side by side
Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.
Dry
Score (0–100)
Ecsta PS31 leads by 7
Why this score
| Source | Potenza RE040 | Ecsta PS31 |
|---|---|---|
| Tire Rack owners | – | 85 |
| Tyre Reviews owners | 79 | 83 |
| SimpleTire owners | – | 93 |
Wet
Score (0–100)
Ecsta PS31 leads by 23
Why this score
| Source | Potenza RE040 | Ecsta PS31 |
|---|---|---|
| Tire Rack owners | – | 81 |
| Tyre Reviews owners | 58 | 78 |
| SimpleTire owners | – | 87 |
Snow
Score (0–100)
Why this score
| Source | Potenza RE040 | Ecsta PS31 |
|---|---|---|
| SimpleTire owners | – | 79 |
Comfort
Score (0–100)
Ecsta PS31 leads by 26
Why this score
| Source | Potenza RE040 | Ecsta PS31 |
|---|---|---|
| Tire Rack owners | – | 84 |
| Tyre Reviews owners | 57 | 78 |
| SimpleTire owners | – | 89 |
Noise
Score (0–100)
Why this score
| Source | Potenza RE040 | Ecsta PS31 |
|---|---|---|
| SimpleTire owners | – | 89 |
Treadwear
Score (0–100)
Ecsta PS31 leads by 16
Why this score
| Source | Potenza RE040 | Ecsta PS31 |
|---|---|---|
| Tire Rack owners | – | 82 |
| Tyre Reviews owners | 65 | 75 |
| SimpleTire owners | – | 88 |
Handling
Score (0–100)
Ecsta PS31 leads by 9
Why this score
| Source | Potenza RE040 | Ecsta PS31 |
|---|---|---|
| Tyre Reviews owners | 70 | 79 |
Scores at a glance
| Category | Bridgestone Potenza RE040 | Kumho Ecsta PS31 |
|---|---|---|
| Relative Score | 65 | 82 |
| Dry | 79 | 86 |
| Wet | 58 | 81 |
| Snow | – | 79 |
| Comfort | 57 | 83 |
| Noise | – | 89 |
| Treadwear | 65 | 81 |
| Handling | 70 | 79 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
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Recomputed
Headline score
65
/ 100
Tire A
82
/ 100
Tire B
Only categories both tires have data for count toward the headline score.
From owners
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Bridgestone Potenza RE040 is a polarizing, performance-oriented tire that excels in dry, warm conditions but struggles significantly with road noise and wet-weather confidence. While many drivers appreciate the stiff sidewalls for their precise steering feedback and progressive handling, the consensus is that the tire is outdated, with modern alternatives offering superior comfort and all-weather capability.
Pros
- Excellent dry weather grip and handling
- High level of steering feedback and directness
- Progressive and predictable breakaway characteristics
- Stiff sidewalls provide a sporty, responsive feel
Cons
- Excessive and intrusive road noise
- Poor performance and lack of confidence in wet or cold conditions
- Harsh ride quality due to stiff construction
- Inconsistent tread life depending on vehicle and driving style
Observations
- Owners of performance-oriented vehicles like the Nissan 350z and Mazda RX-8 often praise the tire's dry-weather feedback but note its limitations on track or in the rain.
- Drivers of front-wheel-drive hatchbacks (e.g., Honda Civic Type R) frequently report significant understeer and rapid front-tire wear.
- Users with quieter, luxury-oriented vehicles (e.g., Audi A8, Mazda 6) report that the tire's high noise levels significantly detract from the overall driving experience.
The Kumho Ecsta PS31 is widely regarded as a high-value, budget-friendly performance tire that excels in daily driving comfort and quietness. While it offers impressive dry grip and reliable wet weather performance for most drivers, enthusiasts often note that its soft sidewalls result in less steering precision and reduced feedback during aggressive cornering compared to premium ultra-high-performance alternatives.
Pros
- Excellent price-to-performance ratio
- High levels of ride comfort and low road noise
- Strong dry traction for daily and spirited street driving
- Predictable and capable wet weather performance for most conditions
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
- Increased noise levels as the tire wears down
Observations
- Users with smaller, lighter vehicles (e.g., Mazda Miata, Honda Civic) often praise the comfort and value, while those with heavier or more powerful vehicles report more pronounced sidewall flex and handling vagueness.
- Drivers running low-profile sizes on rough roads report a higher susceptibility to sidewall bubbles and damage from potholes, suggesting a need for road hazard coverage.
- The tire is frequently noted as a significant upgrade in comfort and noise reduction when replacing OEM run-flat tires.
Specifications
Specs side by side
| Attribute | A · Bridgestone Potenza RE040 | B · Kumho Ecsta PS31 |
|---|---|---|
| Category | Summer Ultra High Performance tires | Summer Ultra High Performance tires |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | — | 4 |
| Rim diameters | — | 17″ – 18″ |
| Tread depth | — | 10/32″ |
| UTQG | — | 460 A A |
| Sidewall | — | Blackwall |
| Max pressure | — | 51 psi |
Final verdict
Which one should you actually buy?
65
/ 100
Bridgestone
82
/ 100
Kumho
Winner: Kumho Ecsta PS31 — better comfort, wet and treadwear. It leads or ties in every category we score.
Pick tire B
You want the most comfortable ride
Kumho Ecsta PS31 scores 83 vs 57 on comfort.
Pick tire B
Your priority is wet-weather safety
Kumho Ecsta PS31 scores 81 vs 58 on wet.
Pick tire B
You want the longest tread life
Kumho Ecsta PS31 scores 81 vs 65 on treadwear.
Pick tire B
You enjoy sharp, responsive handling
Kumho Ecsta PS31 scores 79 vs 70 on handling.
Tire A · Bridgestone Potenza RE040
Tire B · Kumho Ecsta PS31
More comparisons
Also compared with
Bridgestone Potenza RE040 also compared with
Kumho Ecsta PS31 also compared with
How do we compare tires?
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.
Community buzz from Reddit and forums is shown for context only — it never changes the score.