Riken All Star 2 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Riken All Star 2 vs Cooper Discoverer A/T3 Sport — 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 + 0 road tests and 3 + 4 owner reviews. How we score

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Riken All Star 2
Tire ARiken

All Star 2

Summer Touring tires

Tests – · none yet Owners – · 3 reviews (needs 5)

Cooper Discoverer A/T3 Sport
Tire BCooper

Discoverer A/T3 Sport

All Terrain and Off Road All Season tire

Tests – · none yet Owners – · 4 reviews (needs 5)

Not enough data yet to score these two side by side

We need test results or owner reviews in at least one shared category for both tires. What we know about each is on its own page.

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A All Star 2

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
All owner themes in the All Star 2 review

Tire B Discoverer A/T3 Sport

Pros

  • Exceptional ride comfort on long trips and asphalt
  • Very low fuel consumption compared to other tires
  • Strong dry grip and above-average on-road performance

Cons

  • Snow performance decreases significantly after the first year
  • Slight oversteer tendencies on wet roundabouts
  • Slipping tendencies in wet mud conditions
All owner themes in the Discoverer A/T3 Sport review

Specs side by side

Attribute A · Riken All Star 2 B · Cooper Discoverer A/T3 Sport
CategorySummer Touring tiresAll Terrain and Off Road All Season tire
Vehicle typePassenger Car / CrossoverSUV and 4x4

Which one should you actually buy?

Riken All Star 2

Cooper Discoverer A/T3 Sport

Neither tire has enough test or review data for a Relative Score yet.

Tire A · Riken All Star 2
Tire B · Cooper Discoverer A/T3 Sport

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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