Tests – · none yet Owners 65 · 154 reviews
Head-to-head
Updated
Kumho Road Venture AT51 vs Nexen Roadian AT Pro RA8 — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 0 + 1 road tests and 154 + 70 owner reviews. How we score
Too close to call: Road Venture AT51 67, Roadian AT Pro RA8 68.
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Tests – · 1 test Owners 69 · 70 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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67
Dry
Level67Why this score
Source Road Venture AT51 Roadian AT Pro RA8 Professional tests (TWG score) ≈ 68 (est.) ≈ 67 (est.) Reviews found online 67 66 Road Venture AT51: 60% × 67.6 (est.) + 40% × 67.1 = 67
Roadian AT Pro RA8: 60% × 67.1 (est.) + 40% × 66 = 67
No road tests of dry for Road Venture AT51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
No road tests of dry for Roadian AT Pro RA8. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
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70
Wet
Level70Why this score
Source Road Venture AT51 Roadian AT Pro RA8 Professional tests (TWG score) ≈ 70 (est.) ≈ 70 (est.) Reviews found online 70 70 Road Venture AT51: 60% × 70.1 (est.) + 40% × 69.6 = 70
Roadian AT Pro RA8: 60% × 70.3 (est.) + 40% × 70 = 70
No road tests of wet for Road Venture AT51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
No road tests of wet for Roadian AT Pro RA8. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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70
Snow
Level70Why this score
Source Road Venture AT51 Roadian AT Pro RA8 Professional tests (TWG score) ≈ 70 (est.) ≈ 70 (est.) Reviews found online 69 70 Road Venture AT51: 60% × 70.1 (est.) + 40% × 69.3 = 70
Roadian AT Pro RA8: 60% × 70.3 (est.) + 40% × 70 = 70
No road tests of snow for Road Venture AT51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
No road tests of snow for Roadian AT Pro RA8. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
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64
Comfort
Level64Why this score
Source Road Venture AT51 Roadian AT Pro RA8 Professional tests (TWG score) ≈ 67 (est.) ≈ 67 (est.) Reviews found online 63 63 Road Venture AT51: 40% × 67.5 (est.) + 60% × 62.5 = 64
Roadian AT Pro RA8: 40% × 67.5 (est.) + 60% × 62.5 = 64
No road tests of comfort for Road Venture AT51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.21).
No road tests of comfort for Roadian AT Pro RA8. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.21).
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63
Noise
Roadian AT Pro RA8 +568Why this score
Source Road Venture AT51 Roadian AT Pro RA8 Professional tests (TWG score) ≈ 66 (est.) ≈ 66 (est.) Reviews found online 59 71 Road Venture AT51: 60% × 66.3 (est.) + 40% × 58.7 = 63
Roadian AT Pro RA8: 60% × 66.3 (est.) + 40% × 70.6 = 68
No road tests of noise for Road Venture AT51 or Roadian AT Pro RA8. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
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61
Treadwear
Roadian AT Pro RA8 +869Why this score
Source Road Venture AT51 Roadian AT Pro RA8 Professional tests (TWG score) · – / 1 tests ≈ 64 (est.) 67 Reviews found online 58 73 Road Venture AT51: 60% × 63.5 (est.) + 40% × 58.1 = 61
Roadian AT Pro RA8: 60% × 66.9 + 40% × 73.3 = 69
No road tests of treadwear for Road Venture AT51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
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62
Handling (owners)
No comparison–Why this score
Source Road Venture AT51 Roadian AT Pro RA8 Reviews found online 62 –
Scores at a glance
| Category | Kumho Road Venture AT51 | Nexen Roadian AT Pro RA8 |
|---|---|---|
| Relative Score | 67 | 68 |
| Dry | 67 | 67 |
| Wet | 70 | 70 |
| Snow | 70 | 70 |
| Comfort | 64 | 64 |
| Noise | 63 | 68 |
| Treadwear | 61 | 69 |
| Handling (owners) | 62 | – |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.
Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Recomputed
Headline score
67
/ 100
Road Venture AT51
68
/ 100
Roadian AT Pro RA8
Only categories both tires have data for count toward the headline score.
The professional test results behind the scores
Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.
In the overall rankings of 1 tests that ran both, Kumho Road Venture AT51 finished ahead 0 times and Nexen Roadian AT Pro RA8 1 times.
| Discipline | Category | Road Venture AT51 | Roadian AT Pro RA8 | Δ | Head-to-head |
|---|---|---|---|---|---|
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #17/13 | #12/13 | – | 0–1 in 1 shared test Newest: 2018 SA4x4 All-Terrain Tire Test R17 · 265/65R17 |
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Road Venture AT51
Pros
- Exceptional value and affordable price point compared to premium competitors
- Impressive traction and confidence in snow and winter conditions
- Quiet and smooth highway ride with minimal road noise for an all-terrain tire
Cons
- Faster-than-expected tread wear for some users under heavy or everyday use
- Poor self-cleaning capabilities in deep or heavy mud
- Reduced wet traction and potential slippage when the tread wears low
Tire B Roadian AT Pro RA8
Pros
- Exceptional value and affordable price point
- Unusually quiet and smooth ride on the highway for an all-terrain tire
- Strong traction and handling in dry and wet road conditions
Cons
- Tread can pack with mud or deep snow, reducing traction in severe off-road or deep winter conditions
- Gravel tends to get stuck easily in the tread blocks, creating persistent noise on unpaved roads
- Some users reported limited longevity or hydroplaning once the tire wear reached higher mileage
Specs side by side
| Attribute | A · Kumho Road Venture AT51 | B · Nexen Roadian AT Pro RA8 |
|---|---|---|
| Category | All-Terrain tire | All-Terrain tire |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 10 | 39 |
| Rim diameters | 15″ – 18″ | 15″ – 22″ |
| Tread depth | 13.5/32″ | 13/32″ |
| UTQG | 540 A A | 560 A B |
| Treadwear warranty | 55,000 mi | 50,000 mi |
| Sidewall | Blackwall | Outlined White Lettering |
| Max pressure | 65 psi | 51 psi |
| Sizes in common | 9 | 9 |
Which one should you actually buy?
67
/ 100
Kumho Road Venture AT51
68
/ 100
Nexen Roadian AT Pro RA8
Too close to call: Kumho Road Venture AT51 and Nexen Roadian AT Pro RA8 are within 2 points overall. Nexen Roadian AT Pro RA8 is stronger on treadwear and noise.
Pick tire B
You want the longest tread life
Nexen Roadian AT Pro RA8 scores 69 vs 61 on treadwear.
Pick tire B
You want a quieter cabin
Nexen Roadian AT Pro RA8 scores 68 vs 63 on noise.
Tire A · Kumho Road Venture AT51
Tire B · Nexen Roadian AT Pro RA8
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Road Venture AT51 or Roadian AT Pro RA8?
Which is better in the wet, Road Venture AT51 or Roadian AT Pro RA8?
Neither, by our numbers: 70 vs 70 on the wet score, within 3 points.
Which grips better on dry roads, Road Venture AT51 or Roadian AT Pro RA8?
Neither, by our numbers: 67 vs 67 on the dry score, within 3 points.
Which is better in snow, Road Venture AT51 or Roadian AT Pro RA8?
Neither, by our numbers: 70 vs 70 on the snow score, within 3 points.
Which is quieter, Road Venture AT51 or Roadian AT Pro RA8?
Nexen Roadian AT Pro RA8, 68 vs 63 on our noise score.
Which is more comfortable, Road Venture AT51 or Roadian AT Pro RA8?
Neither, by our numbers: 64 vs 64 on the comfort score, within 3 points.
Which lasts longer, Road Venture AT51 or Roadian AT Pro RA8?
Nexen Roadian AT Pro RA8, 69 vs 61 on our treadwear score.
How do we compare tires?
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.
Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.
Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology