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Kumho Road Venture A/T KL78 vs Toyo Open Country A/T II — 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.
Toyo Open Country A/T II
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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
Why this score
| Source | Road Venture A/T KL78 | Open Country A/T II |
|---|---|---|
| Tyre Reviews owners | – | 65 |
Wet
Why this score
| Source | Road Venture A/T KL78 | Open Country A/T II |
|---|---|---|
| Tyre Reviews owners | – | 50 |
Snow
Why this score
| Source | Road Venture A/T KL78 | Open Country A/T II |
|---|---|---|
| Tyre Reviews owners | – | 45 |
Comfort
Why this score
| Source | Road Venture A/T KL78 | Open Country A/T II |
|---|---|---|
| Tyre Reviews owners | – | 80 |
Noise
Treadwear
Why this score
| Source | Road Venture A/T KL78 | Open Country A/T II |
|---|---|---|
| Tyre Reviews owners | – | 75 |
Handling
Why this score
| Source | Road Venture A/T KL78 | Open Country A/T II |
|---|---|---|
| Tyre Reviews owners | – | 60 |
Scores at a glance
| Category | Kumho Road Venture A/T KL78 | Toyo Open Country A/T II |
|---|---|---|
| Relative Score | 92 | 92 |
| Dry | 96 | 96 |
| Wet | 91 | 91 |
| Snow | 92 | 91 |
| Comfort | 92 | 93 |
| Noise | 91 | 89 |
| Treadwear | 92 | 92 |
| Handling | 92 | 93 |
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
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Kumho Road Venture A/T KL78 is widely regarded as a high-value, all-terrain tire that excels in noise suppression and daily road comfort. While most users praise its balanced performance across various surfaces, a minority of owners report issues with ride quality and consistency, suggesting that performance may vary depending on vehicle weight and suspension setup.
Pros
- Exceptional value for the price point
- Surprisingly low road noise for an all-terrain tread pattern
- Strong dry pavement traction and highway stability
- Reliable performance on gravel and light off-road surfaces
Cons
- Reports of ride harshness or vibration on heavier-duty trucks
- Potential for uneven tread wear or cupping over time
- Harder rubber compound can lead to reduced wet-weather grip during aggressive cornering
- Occasional reports of slow air pressure loss
Observations
- Users on lighter vehicles like older Jeeps noted improved comfort compared to more aggressive E-load rated tires.
- Heavy-duty truck owners reported mixed results, with some experiencing significant vibration and ride quality issues compared to lighter pickup applications.
The Toyo Open Country A/T II is widely regarded as a versatile, durable, and quiet all-terrain tire that excels in mixed-use scenarios, including towing and light-to-moderate off-roading. While the vast majority of users praise its longevity and highway comfort, a subset of owners reports persistent issues with high-speed balancing and inconsistent performance on slick, wet pavement.
Pros
- Excellent highway comfort and low road noise for an all-terrain tire
- Strong off-road capability in mud, sand, and loose rock
- High durability and tread life when properly maintained
- Predictable handling and stability while towing heavy loads
Cons
- Persistent reports of vibration and difficulty achieving a proper high-speed balance
- Inconsistent traction on wet or freshly rained-on pavement
- Potential for uneven tread wear if rotation and pressure are not strictly managed
- Some users find the compound too stiff for optimal grip in icy or packed snow conditions
Observations
- Heavy-duty truck owners (e.g., Ram 2500/3500) report excellent towing stability, provided tire pressures are adjusted using the 'chalk test' to prevent center-tread wear.
- Users opting for 'C' load ratings on lighter vehicles like the Jeep Wrangler report a more comfortable ride but note 'squishy' sidewalls during off-road deflation compared to 'E' load versions.
- Owners of smaller SUVs and crossovers (e.g., Subaru Crosstrek) generally find the tire to be a significant aesthetic and functional upgrade over stock tires with minimal noise penalty.
Specs side by side
| Attribute | A · Kumho Road Venture A/T KL78 | B · Toyo Open Country A/T II |
|---|---|---|
| Category | All Season All Terrain and Off Road tires | — |
| Vehicle type | SUV and 4x4 | — |
Which one should you actually buy?
Kumho
Toyo
Too close to call: Kumho Road Venture A/T KL78 and Toyo Open Country A/T II are within 2 points overall.
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.