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Kumho Ecsta PS91 vs Nitto Invo — Compared (September 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.
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6 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
Why this score
| Source | Ecsta PS91 | Invo |
|---|---|---|
| Professional tests (TWG score) | 81 | – |
| Tire Rack owners | 87 | – |
| Tyre Reviews owners | 82 | 79 |
| SimpleTire owners | – | 98 |
Wet
Why this score
| Source | Ecsta PS91 | Invo |
|---|---|---|
| Professional tests (TWG score) | 80 | – |
| Tire Rack owners | 77 | – |
| Tyre Reviews owners | 73 | 67 |
| SimpleTire owners | – | 87 |
Comfort
Why this score
| Source | Ecsta PS91 | Invo |
|---|---|---|
| Professional tests (TWG score) | 37 | – |
| Tire Rack owners | 80 | – |
| Tyre Reviews owners | 73 | 67 |
| SimpleTire owners | – | 98 |
Noise
Why this score
| Source | Ecsta PS91 | Invo |
|---|---|---|
| Professional tests (TWG score) | 87 | – |
| SimpleTire owners | – | 98 |
Treadwear
Why this score
| Source | Ecsta PS91 | Invo |
|---|---|---|
| Tire Rack owners | 64 | – |
| Tyre Reviews owners | 55 | 65 |
| SimpleTire owners | – | 84 |
Handling
Why this score
| Source | Ecsta PS91 | Invo |
|---|---|---|
| Tyre Reviews owners | 75 | 75 |
| DriverReviews owners | 80 | – |
Scores at a glance
| Category | Kumho Ecsta PS91 | Nitto Invo |
|---|---|---|
| Relative Score | 69 | 70 |
| Dry | 82 | 79 |
| Wet | 78 | 67 |
| Comfort | 52 | 67 |
| Noise | 87 | – |
| Treadwear | 57 | 65 |
| Handling | 75 | 75 |
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.
Tire A
Tire B
Only categories both tires have data for count toward the headline score.
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Kumho Ecsta PS91 is widely regarded as a high-value performance tire that offers impressive dry grip and steering feedback, often rivaling more expensive premium brands. However, user consensus is polarized regarding tread longevity, with many owners reporting premature wear, and some experiencing inconsistent performance in wet conditions or issues with sidewall durability.
Pros
- Excellent dry weather grip and cornering stability
- High value-for-money proposition compared to premium competitors
- Stiff sidewalls provide sharp, responsive steering feedback
- Quiet and comfortable ride quality for a performance-oriented tire
Cons
- Rapid and premature tread wear, particularly on heavier or high-torque vehicles
- Inconsistent wet weather performance and aquaplaning susceptibility
- Reports of sidewall cracking or deformation after moderate use
- Tendency to tramline or follow road ruts on highway surfaces
Observations
- Owners of heavy, high-torque vehicles (e.g., BMW 5-series, performance saloons) frequently report significantly accelerated tread wear.
- BMW and Mini owners transitioning from factory run-flat tires often praise the PS91 for improved comfort and steering feel due to its specific sidewall construction.
- Some users noted that the tire's actual width when inflated can be narrower than the nominal size, leading to fitment or aesthetic concerns.
The Nitto Invo is a polarizing ultra-high-performance tire that receives highly inconsistent feedback regarding its longevity and noise levels. While some users praise its dry-weather grip and aesthetic appeal, a significant portion of owners report premature hardening, excessive road noise, and a notable decline in wet-weather performance as the tread wears down.
Pros
- Strong dry-weather traction and cornering stability
- Attractive, aggressive tread pattern design
- Competitive price point compared to premium rivals
- Good initial comfort levels when new
Cons
- Significant increase in road noise and 'whine' as the tire ages
- Substantial decline in wet-weather grip and safety over time
- Tendency to pick up and retain small road debris in the tread grooves
- Inconsistent tread life with reports of premature hardening and structural issues
Observations
- Users on FWD platforms like the Mazda3 noted rapid front-tire wear, suggesting a need for frequent rotation.
- High-horsepower vehicles (e.g., Chrysler SRT8, Holden Commodore) report difficulty maintaining traction under heavy acceleration.
- Drivers on rougher road surfaces report higher instances of sidewall damage and structural failure compared to those on well-maintained highways.
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Kumho Ecsta PS91
Community opinion on the Kumho Ecsta PS91 is generally mixed, praising them as a budget-friendly, good-looking max performance summer tire that rivals premium brands in daily driving comfort and appearance. However, multiple users note concerns regarding rapid tread wear, poor heat capacity under track conditions, and susceptibility to degrading under hard abuse compared to dedicated 200 treadwear or extreme performance tires.
“Follow up on new wheels/tires for ZHP Well new wheels and tires are on aswell as aligned. I love the tire and fitment setup but really do not like the gunmetal grey color especially on imola. I will feel it out for a while but probably eventually powder coat to OEM silver. Wheels specs are 18 x 8.5 x ET50 with 255/35/18 Kuhmo Ecsta PS91 all around. -2.5 camber in the front and -2.8 in the rear.”
“New meaty tires set up installed, now I can order spacers Went up tire sizes and they definitely fill the gap a bit. First time running sticky kumhos on anytime so excited to see how they turn out.Specs are Kumho Ecsta Ps91 235/40/18 up front and 265/40/18 in the rear. Read more”
“New wheels and tires for my ZHP My old wheels were super beat up and tires were showing wire so I figured I’d upgrade both. Was able to get these freshly powder coated squared set (18/8.5/et 50). Im excited to feel the Kuhmo Ecsta PS91 as they are a budget friendly performance tire. 255/35/18 tires all around”
“275/40 Square Can Fit on a Sedan Shout out to TireRack for having great information on actual tire size. Ecsta PS91 265/40 and ExtremeContact 275/40 has a tread width and section width difference of 0.1” and 0.2” respectively. Tires fit just about perfect. No rubbing so far, and don’t expect it to rub bc of the relatively minimal width change Really goes to show that tire brand matters for fitment Read more”
Based on 16 community posts
Nitto Invo
We haven't collected enough community discussion about this tire yet.
Specs side by side
| Attribute | A · Kumho Ecsta PS91 | B · Nitto Invo |
|---|---|---|
| Category | Summer Extreme Performance tires | Summer High Performance tires |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | — | 39 |
| Rim diameters | — | 17″ – 22″ |
| Tread depth | — | 10.3/32″ |
| UTQG | — | 220 A A |
| Sidewall | — | Blackwall |
| Max pressure | — | 50 psi |
Which one should you actually buy?
Kumho
Nitto
Too close to call: Kumho Ecsta PS91 and Nitto Invo are within 2 points overall. Kumho Ecsta PS91 is stronger on wet and dry. Nitto Invo is stronger on comfort and treadwear.
Nitto Invo scores 67 vs 52 on comfort.
Kumho Ecsta PS91 scores 78 vs 67 on wet.
Nitto Invo scores 65 vs 57 on treadwear.
Kumho Ecsta PS91 scores 82 vs 79 on dry.
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.