Tests – · none yet Owners 37 · 16 reviews
Head-to-head
Updated
Cooper Zeon 2XS vs Sumitomo HTR Z III — 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 16 + 42 owner reviews. How we score
HTR Z III is ahead, 65–46
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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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48
Dry
HTR Z III +1967Why this score
Source Zeon 2XS HTR Z III Professional tests (TWG score) ≈ 55 (est.) ≈ 68 (est.) Reviews found online 37 67 Zeon 2XS: 60% × 55.2 (est.) + 40% × 37 = 48
HTR Z III: 60% × 67.6 (est.) + 40% × 67.1 = 67
No road tests of dry for Zeon 2XS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
No road tests of dry for HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
-
47
Wet
HTR Z III +1663Why this score
Source Zeon 2XS HTR Z III Professional tests (TWG score) ≈ 53 (est.) ≈ 65 (est.) Reviews found online 38 60 Zeon 2XS: 60% × 53.1 (est.) + 40% × 38.4 = 47
HTR Z III: 60% × 65 (est.) + 40% × 60.2 = 63
No road tests of wet for Zeon 2XS. 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 HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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–
Snow
No comparison37Why this score
Source Zeon 2XS HTR Z III Professional tests (TWG score) – ≈ 53 (est.) Reviews found online – 14 HTR Z III: 60% × 52.6 (est.) + 40% × 14 = 37
No road tests of snow for HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
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49
Comfort
HTR Z III +1766Why this score
Source Zeon 2XS HTR Z III Professional tests (TWG score) ≈ 63 (est.) ≈ 68 (est.) Reviews found online 40 64 Zeon 2XS: 40% × 62.8 (est.) + 60% × 39.5 = 49
HTR Z III: 40% × 67.8 (est.) + 60% × 64.3 = 66
No road tests of comfort for Zeon 2XS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
No road tests of comfort for HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
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–
Noise
No comparison65Why this score
Source Zeon 2XS HTR Z III Professional tests (TWG score) – ≈ 66 (est.) Reviews found online – 62 HTR Z III: 60% × 66.4 (est.) + 40% × 62.3 = 65
No road tests of noise for HTR Z III. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
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48
Treadwear
HTR Z III +1866Why this score
Source Zeon 2XS HTR Z III Professional tests (TWG score) · – / 1 tests ≈ 55 (est.) 70 Reviews found online 36 59 Zeon 2XS: 60% × 55.5 (est.) + 40% × 35.9 = 48
HTR Z III: 60% × 70.2 + 40% × 59.1 = 66
No road tests of treadwear for Zeon 2XS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
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31
Handling (owners)
HTR Z III +3465Why this score
Source Zeon 2XS HTR Z III Reviews found online 31 65
Scores at a glance
| Category | Cooper Zeon 2XS | Sumitomo HTR Z III |
|---|---|---|
| Relative Score | 46 | 65 |
| Dry | 48 | 67 |
| Wet | 47 | 63 |
| Snow | – | 37 |
| Comfort | 49 | 66 |
| Noise | – | 65 |
| Treadwear | 48 | 66 |
| Handling (owners) | 31 | 65 |
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
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
46
/ 100
Zeon 2XS
65
/ 100
HTR Z III
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 Zeon 2XS
Pros
- Strong dry pavement grip and handling
- Competitive price point compared to premium brands
- Capable performance in high-horsepower or track-day applications
Cons
- Unpredictable and poor wet weather traction
- Rapid and inconsistent tread wear
- Soft sidewalls leading to vague steering input and tramlining
Tire B HTR Z III
Pros
- Excellent price-to-performance ratio
- Strong dry handling and steering feedback
- Quiet and comfortable ride quality
Cons
- Inconsistent wet-weather side grip during cornering
- Limited traction under heavy acceleration on high-horsepower vehicles
- Not suitable for winter or freezing conditions
Specs side by side
| Attribute | A · Cooper Zeon 2XS | B · Sumitomo HTR Z III |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Tread depth | — | 10/32″ |
| UTQG | — | 300 A A |
| Sidewall | — | Blackwall |
| Max pressure | — | 50 psi |
Which one should you actually buy?
46
/ 100
Cooper Zeon 2XS
65
/ 100
Sumitomo HTR Z III
Winner: Sumitomo HTR Z III — better handling, dry and treadwear. It leads or ties in every category we score. Cooper Zeon 2XS rests on little evidence so far (0 tests, 16 reviews), so read this result as provisional.
Pick tire B
You enjoy sharp, responsive handling
Sumitomo HTR Z III scores 65 vs 31 on handling.
Pick tire B
You want the most grip on dry roads
Sumitomo HTR Z III scores 67 vs 48 on dry.
Pick tire B
You want the longest tread life
Sumitomo HTR Z III scores 66 vs 48 on treadwear.
Pick tire B
You want the most comfortable ride
Sumitomo HTR Z III scores 66 vs 49 on comfort.
Tire A · Cooper Zeon 2XS
Tire B · Sumitomo HTR Z III
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Zeon 2XS or HTR Z III?
Which is better in the wet, Zeon 2XS or HTR Z III?
Sumitomo HTR Z III, 63 vs 47 on our wet score.
Which grips better on dry roads, Zeon 2XS or HTR Z III?
Sumitomo HTR Z III, 67 vs 48 on our dry score.
Which is more comfortable, Zeon 2XS or HTR Z III?
Sumitomo HTR Z III, 66 vs 49 on our comfort score.
Which lasts longer, Zeon 2XS or HTR Z III?
Sumitomo HTR Z III, 66 vs 48 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