83
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
86/100
6 owner reviews
Prices change daily — check the retailer for your size.
Head-to-head
Updated May 2026
Dunlop Direzza Sport Z1 Star Spec vs Nitto NT555 — 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.
VS
67
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
68/100
6 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Dunlop Direzza Sport Z1 Star Spec — better wet, dry and handling. It leads or ties in every category we score.
Read full
TireWheelGuide may earn a commission from purchases made via links on this page.
Category breakdown
5 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
Score (0–100)
Direzza Sport Z1 Star Spec leads by 17
Why this score
| Source | Direzza Sport Z1 Star Spec | NT555 |
|---|---|---|
| Tyre Reviews owners | 92 | 75 |
Wet
Score (0–100)
Direzza Sport Z1 Star Spec leads by 20
Why this score
| Source | Direzza Sport Z1 Star Spec | NT555 |
|---|---|---|
| Tyre Reviews owners | 83 | 63 |
Comfort
Score (0–100)
Direzza Sport Z1 Star Spec leads by 15
Why this score
| Source | Direzza Sport Z1 Star Spec | NT555 |
|---|---|---|
| Tyre Reviews owners | 82 | 67 |
Treadwear
Score (0–100)
Direzza Sport Z1 Star Spec leads by 12
Why this score
| Source | Direzza Sport Z1 Star Spec | NT555 |
|---|---|---|
| Tyre Reviews owners | 77 | 65 |
Handling
Score (0–100)
Direzza Sport Z1 Star Spec leads by 16
Why this score
| Source | Direzza Sport Z1 Star Spec | NT555 |
|---|---|---|
| Tyre Reviews owners | 88 | 72 |
Scores at a glance
| Category | Dunlop Direzza Sport Z1 Star Spec | Nitto NT555 |
|---|---|---|
| Relative Score | 83 | 67 |
| Dry | 92 | 75 |
| Wet | 83 | 63 |
| Comfort | 82 | 67 |
| Treadwear | 77 | 65 |
| Handling | 88 | 72 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Personalize
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
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Recomputed
Headline score
83
/ 100
Tire A
67
/ 100
Tire B
From owners
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Dunlop Direzza Sport Z1 Star Spec is widely regarded as a high-performance tire that offers exceptional dry grip and handling feedback at a competitive price point. While users consistently praise its spirited driving capabilities and stiff sidewall construction, the consensus notes a trade-off in terms of rapid tread wear and inconsistent wet-weather performance.
Pros
- Exceptional dry grip and handling feedback
- High value-to-performance ratio
- Stiff sidewall construction for improved cornering
- Reduced tire squeal during spirited driving
Cons
- Rapid tread wear compared to OEM alternatives
- Mediocre performance in wet conditions
- Increased road noise levels
- Potential quality control issues regarding tire balancing
Observations
- Users noted that the tire requires significantly more balancing weight compared to premium competitors like Bridgestone.
- The tire exhibits a shorter lifespan, with reports of replacement intervals occurring around 24,000 kilometers.
The Nitto NT555 is widely regarded as a polarizing summer performance tire that excels in dry-weather grip and aesthetic appeal for enthusiasts. While some users praise its planted, semi-slick-like handling, others report significant traction issues in wet conditions and concerns regarding noise levels and longevity as the tread wears.
Pros
- Excellent dry-weather traction and cornering grip
- Aggressive, sporty aesthetic favored by tuners
- Strong straight-line acceleration performance
- Competitive value for performance-oriented driving
Cons
- Poor wet-weather traction and confidence
- Increased road noise, particularly at mid-range speeds and highway cruising
- Noticeable decline in grip and increase in noise as the tire reaches higher mileage
- Inconsistent performance on high-horsepower vehicles
Observations
- Users with high-horsepower vehicles (300+ HP) report significant traction loss and wheel spin under moderate throttle.
- Enthusiasts using the tire for spirited street driving report better satisfaction than those expecting all-weather versatility.
Specifications
Specs side by side
| Attribute | A · Dunlop Direzza Sport Z1 Star Spec | B · Nitto NT555 |
|---|---|---|
| Category | Summer Extreme Performance tires | Summer Ultra High Performance tires |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
Final verdict
Which one should you actually buy?
83
/ 100
Dunlop
67
/ 100
Nitto
Winner: Dunlop Direzza Sport Z1 Star Spec — better wet, dry and handling. It leads or ties in every category we score.
Pick tire A
Your priority is wet-weather safety
Dunlop Direzza Sport Z1 Star Spec scores 83 vs 63 on wet.
Pick tire A
You want the most grip on dry roads
Dunlop Direzza Sport Z1 Star Spec scores 92 vs 75 on dry.
Pick tire A
You enjoy sharp, responsive handling
Dunlop Direzza Sport Z1 Star Spec scores 88 vs 72 on handling.
Pick tire A
You want the most comfortable ride
Dunlop Direzza Sport Z1 Star Spec scores 82 vs 67 on comfort.
Tire A · Dunlop Direzza Sport Z1 Star Spec
Tire B · Nitto NT555
More comparisons
Also compared with
Dunlop Direzza Sport Z1 Star Spec also compared with
Nitto NT555 also compared with
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.