Tests – · none yet Owners 61 · 22 reviews
Head-to-head
Updated
Dunlop Direzza DZ102 vs Bridgestone Potenza GIII — 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 22 + 8 owner reviews. How we score
Potenza GIII is ahead, 75–64
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Tests – · none yet Owners 76 · 8 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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65
Dry
Potenza GIII +1277Why this score
Source Direzza DZ102 Potenza GIII Professional tests (TWG score) ≈ 66 (est.) ≈ 74 (est.) Reviews found online 63 82 Direzza DZ102: 60% × 66.1 (est.) + 40% × 63.4 = 65
Potenza GIII: 60% × 73.7 (est.) + 40% × 81.8 = 77
No road tests of dry for Direzza DZ102. 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 Potenza GIII. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
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67
Wet
Potenza GIII +1077Why this score
Source Direzza DZ102 Potenza GIII Professional tests (TWG score) ≈ 68 (est.) ≈ 76 (est.) Reviews found online 66 80 Direzza DZ102: 60% × 68 (est.) + 40% × 65.8 = 67
Potenza GIII: 60% × 75.8 (est.) + 40% × 80 = 77
No road tests of wet for Direzza DZ102. 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 Potenza GIII. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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61
Comfort
Potenza GIII +667Why this score
Source Direzza DZ102 Potenza GIII Professional tests (TWG score) ≈ 66 (est.) ≈ 68 (est.) Reviews found online 58 67 Direzza DZ102: 40% × 66.5 (est.) + 60% × 57.7 = 61
Potenza GIII: 40% × 68.3 (est.) + 60% × 66.8 = 67
No road tests of comfort for Direzza DZ102. 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 Potenza GIII. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
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60
Treadwear
Potenza GIII +767Why this score
Source Direzza DZ102 Potenza GIII Professional tests (TWG score) ≈ 63 (est.) ≈ 67 (est.) Reviews found online 56 68 Direzza DZ102: 60% × 62.8 (est.) + 40% × 56.1 = 60
Potenza GIII: 60% × 67 (est.) + 40% × 67.9 = 67
No road tests of treadwear for Direzza DZ102. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
No road tests of treadwear for Potenza GIII. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
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61
Handling (owners)
Potenza GIII +2081Why this score
Source Direzza DZ102 Potenza GIII Reviews found online 61 81
Scores at a glance
| Category | Dunlop Direzza DZ102 | Bridgestone Potenza GIII |
|---|---|---|
| Relative Score | 64 | 75 |
| Dry | 65 | 77 |
| Wet | 67 | 77 |
| Comfort | 61 | 67 |
| Treadwear | 60 | 67 |
| Handling (owners) | 61 | 81 |
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
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
64
/ 100
Direzza DZ102
75
/ 100
Potenza GIII
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Direzza DZ102
Pros
- Excellent price-to-performance ratio
- Strong dry pavement grip and cornering stability
- Surprisingly high levels of ride comfort for a performance tire
Cons
- Rapid or inconsistent tread wear
- Inconsistent wet weather performance and hydroplaning resistance
- Increased road noise as the tire ages
Tire B Potenza GIII
Pros
- Outstanding dry grip with great road feedback and minimal squealing at the limit
- Reliable and confident wet-weather performance
- Good tread longevity and durability over high mileage
Cons
- Can be noisy during family trips or extended highway driving
- Performance in wet conditions can occasionally be perceived as average compared to its stellar dry performance
- Sensitive to precise tire pressure adjustments to achieve optimal comfort and performance
Specs side by side
| Attribute | A · Dunlop Direzza DZ102 | B · Bridgestone Potenza GIII |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| UTQG | 460 A A | 180 A A |
Which one should you actually buy?
64
/ 100
Dunlop Direzza DZ102
75
/ 100
Bridgestone Potenza GIII
Winner: Bridgestone Potenza GIII — better handling, dry and wet. It leads or ties in every category we score. Bridgestone Potenza GIII rests on little evidence so far (0 tests, 8 reviews), so read this result as provisional.
Pick tire B
You enjoy sharp, responsive handling
Bridgestone Potenza GIII scores 81 vs 61 on handling.
Pick tire B
You want the most grip on dry roads
Bridgestone Potenza GIII scores 77 vs 65 on dry.
Pick tire B
Your priority is wet-weather safety
Bridgestone Potenza GIII scores 77 vs 67 on wet.
Pick tire B
You want the longest tread life
Bridgestone Potenza GIII scores 67 vs 60 on treadwear.
Tire A · Dunlop Direzza DZ102
Tire B · Bridgestone Potenza GIII
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Direzza DZ102 or Potenza GIII?
Which is better in the wet, Direzza DZ102 or Potenza GIII?
Bridgestone Potenza GIII, 77 vs 67 on our wet score.
Which grips better on dry roads, Direzza DZ102 or Potenza GIII?
Bridgestone Potenza GIII, 77 vs 65 on our dry score.
Which is more comfortable, Direzza DZ102 or Potenza GIII?
Bridgestone Potenza GIII, 67 vs 61 on our comfort score.
Which lasts longer, Direzza DZ102 or Potenza GIII?
Bridgestone Potenza GIII, 67 vs 60 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