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Hankook Ventus S1 Evo Z K129 View Gallery (2)
225-315/30-55 R18-21 38 sizes 2021
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Hankook Ventus S1 Evo Z K129

Hankook Tires Max Performance Summer Next

The Hankook Ventus S1 Evo Z K129 is a Max Performance Summer tire designed to be fitted to Passenger Cars.

9.1
Tire Reviews Score Based on Professional Tests
Medium Confidence View Breakdown
Dry Grip
93%
Wet Grip
80%
Road Feedback
88%
Handling
85%
Wear
50%
Comfort
77%
Buy again
85%
4 Reviews
80% Average
26,000 miles driven
4 Tests (avg: 5th)
Hankook Ventus S1 Evo Z K129

Hankook Ventus S1 Evo Z K129

Summer Premium
BETA
9.1 / 10
Based on Professional Tests · Medium Confidence · Updated 23 Feb 2026

The Tire Reviews Score is the most comprehensive tire scoring system available. It aggregates professional test data from multiple independent publications, user reviews, and consistency analysis using Bayesian statistical methods, weighted normalisation, and recency-adjusted scoring to produce a single, reliable performance rating.

Learn more about our methodology
Category Scores
Wet
88.7
2x / 9 tests
Comfort
76.4
0.32x / 2 tests
Value
74.5
0.42x / 3 tests
Dry
61.4
1.8x / 4 tests
Cross-Category Performance

Cross-category scores are derived metrics that combine data from multiple test disciplines to evaluate real-world performance characteristics.

Handling
75.7
4 tests
Braking
75.1
4 tests
Score Components
Professional Tests
Weight: 80%
Tests: 4
Publications: 3
Period: 2022 - 2026
User Reviews
Weight: 15%
Reviews: 4
Avg Rating: 79.5%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.39
History Points: 10
Methodology & Configuration
Scoring Process
  1. Collect Test Data: Gather results from professional tire tests across multiple publications. Minimum 1 test(s) required.
  2. Normalize Positions: Convert test positions to percentile scores using exponential weighting (factor: 1.2).
  3. Apply Recency Weighting: More recent tests are weighted higher with a decay rate of 0.95.
  4. Incorporate User Reviews: Factor in user review data (minimum 5 reviews). Weight: 15%.
  5. Bayesian Smoothing: Apply Bayesian prior (score: 7, weight: 1.5) to prevent extreme scores with limited data.
  6. Calculate Final Score: Combine all components using normalization factor of 1.1. Max score with limited data: 9.5.
Component Weights
Test Data
80%
User Reviews
15%
Consistency
5%
All Configuration Parameters
ParameterValueDescription
safety_weight 0.7 Weight multiplier for safety-related metrics
performance_weight 0.55 Weight multiplier for performance metrics
comfort_weight 0.4 Weight multiplier for comfort metrics
value_weight 0.45 Weight multiplier for value-for-money metrics
user_reviews_weight 0.15 How much user reviews contribute to the final score
test_data_weight 0.8 How much professional test data contributes to the final score
consistency_weight 0.05 How much score consistency contributes to the final score
recency_decay_rate 0.95 Rate at which older test results lose influence (higher = slower decay)
min_test_count 1 Minimum number of professional tests required
min_review_count 5 Minimum number of user reviews required
score_version 1.9 Current version of the scoring algorithm
score_normalization_factor 1.1 Factor used to normalize raw scores to the 0-10 scale
confidence_factor_weight 0.2 How much data confidence affects the final score
position_penalty_weight 0.2 Penalty applied for poor test positions
gap_penalty_threshold 12 Score gap (%) that triggers additional penalties
min_metrics_count 2 Minimum number of test metrics needed per test
limited_data_threshold 2 Number of tests below which data is considered limited
single_test_penalty 0.75 Score multiplier when only one test is available
critical_metric_penalty 0.7 Penalty for poor performance on critical safety metrics
critical_metric_threshold 70 Score below which a critical metric penalty applies
position_exponential_factor 1.2 Exponent used to amplify position-based scoring
position_exponential_threshold 0.9 Position percentile below which exponential scoring applies
gap_multiplier_critical 3 Multiplier for critical gap penalties
max_category_weight 2 Maximum weight any single category can have
max_score_limited_data 9.5 Score cap when data is limited
bayesian_prior_weight 1.5 Weight of the Bayesian prior in smoothing
bayesian_prior_score 7 Prior score used for Bayesian smoothing
evidence_test_multiplier 1.9 Multiplier for test evidence in confidence calculation
evidence_metric_divisor 3 Divisor for metric count in evidence calculation
evidence_review_divisor 10 Divisor for review count in evidence calculation
combined_penalty_floor 0.2
Data Sources
TestPublicationDateSizePositionMetrics
The BEST Performance Summer Tires for 2026 Tested! Tire Reviews 2026 235/35 R19 6/8 10 metrics
2026 Autobild Sports Cars Summer Tire Test Auto Bild Sportscars 2026 255/35 R19 7/8 9 metrics
2024 Sports Car Tire Test Auto Bild Sportscars 2024 295/30 R20 5/7 8 metrics
2022 Sport Auto UHP, UUHP and Semi Slick Tire Test Sport Auto 2022 235/35 R19 2/10 10 metrics

Videos

Hankook Ventus S1 Evo Z K129 Video
Awards
Recommended
The BEST Performance Summer Tires for 2026 Tested!
2026 · 235/35 R19
All Tests
View Test Results
4
Tests
5th
Average
2nd
Best
7th
Worst
Latest Tire Test Results
The BEST Performance Summer Tires for 2026 Tested!
235/35 R19 • 2026
6th/8
Best aquaplaning resistance and solid wet braking give it reassuring motorway wet performance.
Dry handling feel was near the bottom of the group and it wasn't especially efficient.
The Hankook was the best in the deeper water of aquaplaning and it was slightly ahead of the Falken in the wet tests, but honestly it's hard for me to explain how the tires that came sixth and seventh overall in a test of just eight tires are still fine, but fine they certainly fine. It's just the other tires in this test are great tires for enthusiasts.
2026 Autobild Sports Cars Summer Tire Test
255/35 R19 • 2026
7th/8
The Hankook Ventus S1 Evo Z has the most balanced aquaplaning behaviour, with both axles floating at exactly 87.9 km/h. Dry braking is short and rolling resistance is among the lowest in the test. Wet handling is where it loses ground - it has noticeably less reserve on the wet circuit. It sits mid-pack in most other areas. At around 730 euros per set, it's a reasonably priced option with good efficiency credentials.
2024 Sports Car Tire Test
295/30 R20 • 2024
5th/7
Sporting talent with agile steering, good aquaplaning reserves, and short braking distances on wet roads.
Rear axle's lack of lateral stability leads to a pronounced tendency to oversteer on both wet and dry roads.
View Test Results

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Top 3 Hankook Ventus S1 Evo Z K129 Reviews

Given 80% while driving a SEAT Cupra Formentor 2022 (255/35 R20) on a combination of roads for 10,000 average miles
Great grip and feeling in the dry, decent grip in the wet, absolutely no grip when it's cold but that's expected.
The wear is not great, they don't last much but until they do, they are fun.
Helpful 909
February 16, 2025
Given 90% while driving a BMW X3m (245/40 R21) on mostly country roads for 4,000 spirited miles
much better than the continentals that came with the car, cheaper than michelin pilot sport 4
Helpful 1055
December 11, 2022
Given 84% while driving a Honda Civic Type R (245/35 R19) on mostly country roads for 0 spirited miles
On my 2017 civic type r these were very good , good handling and felt very fast rolling and quick sporty steering. Perfect sporty tire on warm roads and preferred them to Michelin ps4s , but tread is going down quite quick now after 3 months of driving 5x a week. Want to try new Bridgestone Potenza Sport to compare as similar price but I think these hankooks will be better than them.
Helpful 982
December 29, 2022

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Latest Hankook Ventus S1 Evo Z K129 Reviews

Given 70% while driving a Vauxhall Corsa vxr (225/35 R18) on a combination of roads for 12,000 spirited miles
Good all round sports tire, feels good under braking and cornering. In the wet it's good but noticeably less grip than in the dry, which is good as I have found with some other tires in the wet they feel great and then fall off. This tire feels less competent in the wet but it let's you know that through the car and steering wheel so you know your limits. In comparison to the bridgestone s001 and toyo proxes that I've had on this vehicle I would say its the best for dry grip and all weather feel and in my opinion the wear is similar to the other two options aswel.
Helpful 984
November 27, 2022
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