83
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
87/100
48 owner reviews
Prices change daily — check the retailer for your size.
Head-to-head
Updated May 2026
Goodyear Assurance All-Season vs Kumho IZen KW27 — 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
76
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
73/100
32 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Goodyear Assurance All-Season — better dry, wet and comfort. Pick the Kumho IZen KW27 if handling matters most to you.
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)
Assurance All-Season leads by 16
Why this score
| Source | Assurance All-Season | IZen KW27 |
|---|---|---|
| Tire Rack owners | 82 | – |
| Tyre Reviews owners | 80 | 76 |
| SimpleTire owners | 93 | – |
Wet
Score (0–100)
Assurance All-Season leads by 12
Why this score
| Source | Assurance All-Season | IZen KW27 |
|---|---|---|
| Tire Rack owners | 71 | – |
| Tyre Reviews owners | 75 | 75 |
| SimpleTire owners | 88 | – |
Snow
Score (0–100)
IZen KW27 leads by 2
Why this score
| Source | Assurance All-Season | IZen KW27 |
|---|---|---|
| Tire Rack owners | 59 | – |
| Tyre Reviews owners | 30 | 75 |
| SimpleTire owners | 75 | – |
Comfort
Score (0–100)
Assurance All-Season leads by 7
Why this score
| Source | Assurance All-Season | IZen KW27 |
|---|---|---|
| Tire Rack owners | 74 | – |
| Tyre Reviews owners | 85 | 83 |
| SimpleTire owners | 91 | – |
Noise
Score (0–100)
Why this score
| Source | Assurance All-Season | IZen KW27 |
|---|---|---|
| SimpleTire owners | 89 | – |
Treadwear
Score (0–100)
Assurance All-Season leads by 6
Why this score
| Source | Assurance All-Season | IZen KW27 |
|---|---|---|
| Tire Rack owners | 69 | – |
| Tyre Reviews owners | 20 | 78 |
| SimpleTire owners | 87 | – |
Handling
Score (0–100)
IZen KW27 leads by 4
Why this score
| Source | Assurance All-Season | IZen KW27 |
|---|---|---|
| Tyre Reviews owners | 65 | 69 |
Scores at a glance
| Category | Goodyear Assurance All-Season | Kumho IZen KW27 |
|---|---|---|
| Relative Score | 83 | 76 |
| Dry | 92 | 76 |
| Wet | 87 | 75 |
| Snow | 73 | 75 |
| Comfort | 90 | 83 |
| Noise | 89 | – |
| Treadwear | 84 | 78 |
| Handling | 65 | 69 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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Recomputed
Headline score
83
/ 100
Tire A
76
/ 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 Goodyear Assurance All Season is widely regarded as a budget-friendly, comfortable, and quiet tire suitable for daily commuting in moderate climates. While many users report excellent longevity and value, a notable segment of the user base experiences significant premature tread wear and subpar performance in heavy snow or icy conditions.
Pros
- High level of ride comfort and low road noise
- Excellent value for the price point
- Reliable dry and wet weather traction for non-aggressive drivers
- Strong tread life for many users, with some reporting over 60,000 miles
Cons
- Inconsistent tread life, with reports of premature wear well before the warranty limit
- Poor performance in winter conditions, specifically on ice and deep snow
- Occasional reports of vibration and balance issues immediately after installation
- Reduced traction during heavy rain compared to premium alternatives
Observations
- Users on mid-size SUVs like the Toyota RAV4 and Honda CR-V generally report high satisfaction regarding ride quality and noise levels.
- Drivers of heavier vehicles or those in mountainous, snowy regions report that the tire struggles to maintain grip, suggesting it is better suited for flat, temperate environments.
The Kumho IZen KW27 is a polarizing winter tire that excels in deep snow and ice, often surprising users with its durability and traction in severe conditions. However, it receives significant criticism for its performance in wet, slushy, or warmer winter conditions, where many drivers report a 'floaty' handling feel, reduced steering feedback, and a tendency for the vehicle to lose traction.
Pros
- Exceptional traction and braking performance on snow and ice
- High tread longevity and durability over long mileages
- Quiet and comfortable ride quality
- Strong value proposition compared to premium European brands
Cons
- Poor wet-weather grip and high risk of hydroplaning
- Vague steering feedback and 'floaty' handling characteristics
- Performance drops significantly when temperatures rise above 8-10°C
- Requires a lengthy break-in period (300+ miles) to achieve optimal performance
Observations
- Users with high-horsepower or performance-oriented vehicles (300+ bhp) frequently report issues with wet-weather traction and stability.
- Drivers of 4x4 and AWD vehicles (e.g., Honda CRV, Audi Quattro) generally report higher satisfaction with snow performance compared to FWD/RWD users.
- Some users noted that the tire's performance is highly dependent on being fitted as a full set of four, with mixed-tire setups leading to unpredictable handling.
Specifications
Specs side by side
| Attribute | A · Goodyear Assurance All-Season | B · Kumho IZen KW27 |
|---|---|---|
| Category | — | Winter High Performance tires |
| Vehicle type | — | Passenger Car / Crossover |
| Sizes available | 51 | — |
| Rim diameters | 14″ – 20″ | — |
| Tread depth | 9/32″ | — |
| UTQG | 600 A B | — |
| Treadwear warranty | 65,000 mi | — |
| Sidewall | Blackwall | — |
| Max pressure | 51 psi | — |
Final verdict
Which one should you actually buy?
83
/ 100
Goodyear
76
/ 100
Kumho
Winner: Goodyear Assurance All-Season — better dry, wet and comfort. Pick the Kumho IZen KW27 if handling matters most to you.
Pick tire A
You want the most grip on dry roads
Goodyear Assurance All-Season scores 92 vs 76 on dry.
Pick tire A
Your priority is wet-weather safety
Goodyear Assurance All-Season scores 87 vs 75 on wet.
Pick tire A
You want the most comfortable ride
Goodyear Assurance All-Season scores 90 vs 83 on comfort.
Pick tire A
You want the longest tread life
Goodyear Assurance All-Season scores 84 vs 78 on treadwear.
Tire A · Goodyear Assurance All-Season
Tire B · Kumho IZen KW27
More comparisons
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Kumho IZen KW27 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.