Tests – · none yet Owners 44 · 3 reviews
Head-to-head
Updated
Riken All Star 2 vs Cooper Discoverer A/T3 Sport — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Discoverer A/T3 Sport is ahead, 74–52
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Tests – · none yet Owners 75 · 4 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
55
Dry
Discoverer A/T3 Sport +2075Why this score
Source All Star 2 Discoverer A/T3 Sport Reviews found online 48 79 -
55
Wet
Discoverer A/T3 Sport +2176Why this score
Source All Star 2 Discoverer A/T3 Sport Reviews found online 49 78 -
–
Snow
No comparison70Why this score
Source All Star 2 Discoverer A/T3 Sport Reviews found online – 70 -
59
Comfort
Discoverer A/T3 Sport +1574Why this score
Source All Star 2 Discoverer A/T3 Sport Reviews found online 49 78 -
46
Treadwear
Discoverer A/T3 Sport +2268Why this score
Source All Star 2 Discoverer A/T3 Sport Reviews found online 33 71 -
47
Handling
Discoverer A/T3 Sport +2976Why this score
Source All Star 2 Discoverer A/T3 Sport Reviews found online 47 76
Scores at a glance
| Category | Riken All Star 2 | Cooper Discoverer A/T3 Sport |
|---|---|---|
| Relative Score | 52 | 74 |
| Dry | 55 | 75 |
| Wet | 55 | 76 |
| Snow | – | 70 |
| Comfort | 59 | 74 |
| Treadwear | 46 | 68 |
| Handling | 47 | 76 |
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.
Important
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Important
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Neutral
NoneLessNeutralMoreMost
Neither tire has a score here yet, so this weight changes nothing.
Less important
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
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Recomputed
Headline score
52
/ 100
All Star 2
74
/ 100
Discoverer A/T3 Sport
Only categories both tires have data for count toward the headline score.
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
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
Specs side by side
| Attribute | A · Riken All Star 2 | B · Cooper Discoverer A/T3 Sport |
|---|---|---|
| Category | Summer Touring tires | All Terrain and Off Road All Season tire |
| Vehicle type | Passenger Car / Crossover | SUV and 4x4 |
Which one should you actually buy?
52
/ 100
Riken All Star 2
74
/ 100
Cooper Discoverer A/T3 Sport
Winner: Cooper Discoverer A/T3 Sport — better handling, treadwear and wet. It leads or ties in every category we score.
Pick tire B
You enjoy sharp, responsive handling
Cooper Discoverer A/T3 Sport scores 76 vs 47 on handling.
Pick tire B
You want the longest tread life
Cooper Discoverer A/T3 Sport scores 68 vs 46 on treadwear.
Pick tire B
Your priority is wet-weather safety
Cooper Discoverer A/T3 Sport scores 76 vs 55 on wet.
Pick tire B
You want the most grip on dry roads
Cooper Discoverer A/T3 Sport scores 75 vs 55 on dry.
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.
Community buzz from Reddit and forums is shown for context only — it never changes the score.