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Head-to-head Updated May 2026

Cooper Discoverer A/T3 Sport vs Riken All Star 2 — 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.

Tire A Cooper

Cooper Discoverer A/T3 Sport

All Terrain and Off Road All Season tire

Cooper Discoverer A/T3 Sport tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
95/100
44 owner reviews
Dry
99
Wet
96
Snow
89
Comfort
97
Noise
94
Treadwear
94
Handling
87
Check price on Amazon

Prices change daily — check the retailer for your size.

VS
Tire B Riken

Riken All Star 2

Summer Touring tires

Riken All Star 2 tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
57/100
3 owner reviews
Dry
73
Wet
57
Snow
–
Comfort
67
Noise
–
Treadwear
37
Handling
60
Check price on Amazon

Prices change daily — check the retailer for your size.

VerdictWinner: Cooper Discoverer A/T3 Sport — better treadwear, wet and comfort. It leads or ties in every category we score.
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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

Weight: Neutral
Score (0–100) Discoverer A/T3 Sport leads by 26
A
99
B
73
Why this score
SourceDiscoverer A/T3 SportAll Star 2
Tyre Reviews owners 95 73

Wet

Weight: Important
Score (0–100) Discoverer A/T3 Sport leads by 39
A
96
B
57
Why this score
SourceDiscoverer A/T3 SportAll Star 2
Tyre Reviews owners 85 57

Snow

Weight: Neutral
Score (0–100)
A
89
B
–
Why this score
SourceDiscoverer A/T3 SportAll Star 2
Tyre Reviews owners 75 –

Comfort

Weight: Neutral
Score (0–100) Discoverer A/T3 Sport leads by 30
A
97
B
67
Why this score
SourceDiscoverer A/T3 SportAll Star 2
Tyre Reviews owners 98 67

Noise

Weight: Neutral
Score (0–100)
A
94
B
–

Treadwear

Weight: Important
Score (0–100) Discoverer A/T3 Sport leads by 57
A
94
B
37
Why this score
SourceDiscoverer A/T3 SportAll Star 2
Tyre Reviews owners 87 37

Handling

Weight: Neutral
Score (0–100) Discoverer A/T3 Sport leads by 27
A
87
B
60
Why this score
SourceDiscoverer A/T3 SportAll Star 2
Tyre Reviews owners 87 60

Scores at a glance

CategoryCooper Discoverer A/T3 SportRiken All Star 2
Relative Score 95 56
Dry 99 73
Wet 96 57
Snow 89 –
Comfort 97 67
Noise 94 –
Treadwear 94 37
Handling 87 60

Higher is better. The Relative Score follows your weights below; category scores do not change.

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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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Important
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Neutral
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Neutral
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Neutral
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Important
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Neutral
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Recomputed
Headline score

Tire A

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.

Tire A Cooper Discoverer A/T3 Sport

Not enough owner reviews yet to extract themes.

Tire B Riken All Star 2

The Riken All Star 2 is viewed as a polarizing budget-tier tire that serves as a temporary solution rather than a long-term investment. While some users appreciate its value proposition for light-duty city driving, others report significant concerns regarding premature wear and overall durability compared to premium alternatives.

Pros

  • Attractive low price point
  • Acceptable noise levels for budget-conscious drivers
  • Adequate stopping performance in light city conditions

Cons

  • Poor tread longevity and durability
  • Failure to meet safety inspection standards within a year
  • Inconsistent quality compared to premium tire brands

Observations

  • Users operating smaller, lighter vehicles like the Daewoo Matiz reported acceptable noise levels and curb-climbing capability.
  • The tire is frequently criticized when used as a direct replacement for higher-end performance tires, highlighting a significant gap in material longevity.
Specifications

Specs side by side

Attribute A · Cooper Discoverer A/T3 Sport B · Riken All Star 2
CategoryAll Terrain and Off Road All Season tireSummer Touring tires
Vehicle typeSUV and 4x4Passenger Car / Crossover
Final verdict

Which one should you actually buy?

Cooper

Riken

Winner: Cooper Discoverer A/T3 Sport — better treadwear, wet and comfort. It leads or ties in every category we score.

Pick tire A You want the longest tread life

Cooper Discoverer A/T3 Sport scores 94 vs 37 on treadwear.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer A/T3 Sport scores 96 vs 57 on wet.

Pick tire A You want the most comfortable ride

Cooper Discoverer A/T3 Sport scores 97 vs 67 on comfort.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer A/T3 Sport scores 87 vs 60 on handling.

Tire A · Cooper Discoverer A/T3 Sport
Check price on Amazon
Tire B · Riken All Star 2
Check price on Amazon

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.