93
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
94/100
478 owner reviews
Prices change daily — check the retailer for your size.
Head-to-head
Updated September 2026
Cooper Discoverer AT3 XLT vs Kumho Road Venture MT51 — 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.
VS
Tire B
Kumho
Kumho Road Venture MT51
90
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
91/100
71 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Cooper Discoverer AT3 XLT — better snow, wet and handling. 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)
Discoverer AT3 XLT leads by 2
Why this score
| Source | Discoverer AT3 XLT | Road Venture MT51 |
|---|---|---|
| Tire Rack owners | 89 | 87 |
| Tyre Reviews owners | 83 | 75 |
| SimpleTire owners | 98 | 94 |
| America's Tire owners | 97 | – |
Wet
Score (0–100)
Discoverer AT3 XLT leads by 5
Why this score
| Source | Discoverer AT3 XLT | Road Venture MT51 |
|---|---|---|
| Tire Rack owners | 87 | 93 |
| Tyre Reviews owners | 78 | 63 |
| SimpleTire owners | 97 | 87 |
| America's Tire owners | 94 | – |
Snow
Score (0–100)
Discoverer AT3 XLT leads by 7
Why this score
| Source | Discoverer AT3 XLT | Road Venture MT51 |
|---|---|---|
| Tire Rack owners | 92 | 88 |
| Tyre Reviews owners | 70 | 63 |
| SimpleTire owners | 90 | 83 |
Comfort
Score (0–100)
Discoverer AT3 XLT leads by 2
Why this score
| Source | Discoverer AT3 XLT | Road Venture MT51 |
|---|---|---|
| Tire Rack owners | 83 | 84 |
| Tyre Reviews owners | 88 | 65 |
| SimpleTire owners | 96 | 91 |
| America's Tire owners | 93 | – |
Noise
Score (0–100)
Discoverer AT3 XLT leads by 1
Why this score
| Source | Discoverer AT3 XLT | Road Venture MT51 |
|---|---|---|
| SimpleTire owners | 92 | 83 |
| America's Tire owners | 93 | – |
Treadwear
Score (0–100)
Discoverer AT3 XLT leads by 2
Why this score
| Source | Discoverer AT3 XLT | Road Venture MT51 |
|---|---|---|
| Tire Rack owners | 87 | 75 |
| Tyre Reviews owners | 78 | 73 |
| SimpleTire owners | 91 | 83 |
| America's Tire owners | 93 | – |
Handling
Score (0–100)
Discoverer AT3 XLT leads by 4
Why this score
| Source | Discoverer AT3 XLT | Road Venture MT51 |
|---|---|---|
| Tyre Reviews owners | 83 | 58 |
| America's Tire owners | 94 | – |
Scores at a glance
| Category | Cooper Discoverer AT3 XLT | Kumho Road Venture MT51 |
|---|---|---|
| Relative Score | 93 | 90 |
| Dry | 97 | 95 |
| Wet | 94 | 89 |
| Snow | 89 | 82 |
| Comfort | 93 | 91 |
| Noise | 93 | 92 |
| Treadwear | 93 | 91 |
| Handling | 94 | 90 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Personalize
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.
Neutral
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Neutral
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Neutral
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Recomputed
Headline score
93
/ 100
Tire A
90
/ 100
Tire B
From owners
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
Not enough owner reviews yet to extract themes.
The Kumho Road Venture M/T51 is widely regarded as a high-value mud-terrain tire that punches above its weight class, particularly regarding road noise and comfort. While most users praise its off-road capability and surprisingly quiet highway manners, some report sensitivity to tire pressure and occasional traction limitations in wet or icy conditions.
Pros
- Exceptional value for the price point compared to premium competitors
- Surprisingly low road noise for a mud-terrain tire
- Strong off-road traction in mud, gravel, and rocky terrain
- Comfortable ride quality on pavement
- Good tread life and durability when properly maintained
Cons
- Potential for reduced wet-weather traction if tire pressure is not optimized
- Some reports of vibration or balancing issues on heavy-duty trucks
- Susceptibility to cupping if not rotated regularly
- Noticeable decrease in fuel economy compared to highway-terrain tires
Observations
- Users on lighter vehicles like Jeeps and smaller SUVs frequently report higher satisfaction with ride comfort compared to heavy-duty truck owners.
- Heavy-duty truck owners (e.g., RAM 2500) occasionally report ride quality issues, such as shaking or bouncing, which may be linked to load ratings or pressure sensitivity.
- Regular tire rotation is explicitly noted as a critical factor for maintaining the tire's quiet performance over its lifespan.
Community buzz
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Positive
Cooper Discoverer AT3 XLT
Community members express strong satisfaction with the Cooper Discoverer AT3 XLT, highlighting its smooth ride quality, impressive comfort, and quietness compared to competing all-terrain tires like BFG KO2 and Toyo Open Country A/T II. Users also appreciate the solid value when purchased through online retailers during holiday sales, though questions occasionally arise regarding specific winter rating designations.
r/f150
·51 upvotes ·2021-12-30
“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”
r/NissanTitan
·29 upvotes ·2023-03-29
“Put some new tires on the XD today. Cooper Discoverer AT3 XLT in 275/70R18. I usually run BFG KO2s on my trucks but wanted to try something different this time.”
r/ram_trucks
·27 upvotes ·2024-07-11
“Cooper Discoverer AT3 XLT Picked up a set of Discoverer AT3 XLT from simple tire. With the 4th of July discounts all 4 were under 1k before taxes. I had the AT3 4S on a previous ram and they held up so I’m expecting good things here.”
r/ram_trucks
·22 upvotes ·2021-11-19
“New Cooper Discoverer AT3 XLT 275/75R20 these ride way better than my old Open Country A/T II”
Top themes
#ride comfort and smoothness#low road noise#comparison to competing tires#value and pricing#winter and snow rating
Based on 7 community posts
Tire B
Kumho Road Venture MT51
We haven't collected enough community discussion about this tire yet.
Specifications
Specs side by side
| Attribute | A · Cooper Discoverer AT3 XLT | B · Kumho Road Venture MT51 |
|---|---|---|
| Category | Premium Touring All Season tire | — |
| Vehicle type | SUV and 4x4 | — |
| Sizes available | 3 | 1 |
| Rim diameters | 16″ – 20″ | 16″ |
| Tread depth | 16 - 18/32″ | 18/32″ |
| Treadwear warranty | 60,000 mi | — |
| Sidewall | Black Side Wall - Raised White Lettering | Blackwall |
| Max pressure | 35 - 80 psi | 80 psi |
Final verdict
Which one should you actually buy?
93
/ 100
Cooper
90
/ 100
Kumho
Winner: Cooper Discoverer AT3 XLT — better snow, wet and handling. It leads or ties in every category we score.
Pick tire A
You drive through snowy winters
Cooper Discoverer AT3 XLT scores 89 vs 82 on snow.
Pick tire A
Your priority is wet-weather safety
Cooper Discoverer AT3 XLT scores 94 vs 89 on wet.
Pick tire A
You enjoy sharp, responsive handling
Cooper Discoverer AT3 XLT scores 94 vs 90 on handling.
Tire A · Cooper Discoverer AT3 XLT
Tire B · Kumho Road Venture MT51
More comparisons
Also compared with
Cooper Discoverer AT3 XLT also compared with
Kumho Road Venture MT51 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.