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Kormoran Ultra High Performance View Gallery (1)
205-235/45-60 R17-19 85 sizes 2017

Kormoran Ultra High Performance

The Kormoran Ultra High Performance is a Ultra High Performance Summer tyre designed to be fitted to Passenger Cars.

4.7
Tyre Reviews Score Based on Professional Tests
Medium Confidence View Breakdown
Dry Grip
0%
Wet Grip
0%
Road Feedback
0%
Handling
0%
Wear
0%
Comfort
0%
Buy again
0%
2 Tests (avg: 25th)
Kormoran Ultra High Performance

Kormoran Ultra High Performance

Summer Economy
BETA
4.7 / 10
Based on Professional Tests · Medium Confidence · Updated 23 Feb 2026

The Tyre Reviews Score is the most comprehensive tyre 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
Value
100
0.42x / 1 test
Wet
50.2
2x / 6 tests
Dry
45.6
1.8x / 5 tests

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

Braking
52.1
4 tests
Handling
40
4 tests
Score Components
Professional Tests
Weight: 80%
Tests: 2
Publications: 2
Period: 2025 - 2026
User Reviews
Weight: 15%
Reviews: 0
Avg Rating: 0%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.43
History Points: 10
Methodology & Configuration
Scoring Process
  1. Collect Test Data: Gather results from professional tyre 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
2025 EVO Summer Tyre Test EVO 2026 235/35 R19 9/9 10 metrics
2025 Summer Tyre Test Shootout Auto Bild 2025 225/40 R18 40/52 2 metrics
2
Tests
25th
Average
9th
Best
40th
Worst
Latest Tyre Test Results
2025 EVO Summer Tyre Test
235/35 R19 • 2026
9th/9
The Kormoran Ultra High Performance may say "Ultra High Performance" on the sidewall, but that is not what it delivers. While it offers the lowest price and the lowest rolling resistance, fitting a set of these will ruin the handling of any car. Around the wet handling circuit it was more than eight seconds off the pace, which was no surprise given that, compared to the others, it felt like driving on ice. The BMW's limited-slip differential was quickly overwhelmed at the rear, resulting in four-wheel drifts out of most corners where other tyres showed only a hint of oversteer. In the dry it was equally poor – it simply did not grip as hard as other tyres, felt less precise and squealed under load. Less confident and less enjoyable in the dry than all rivals, and treacherous in the wet, this is a tyre with few redeeming features. At only £30 per tyre less than the test winner, false economy has never been so clear. Definitely not recommended.
40th/52
Size Fuel Wet Noise
17 inch
215/55R17 94 V C C 71
215/55R17 94 V C C 71
215/55R17 94 V C C 71
215/55R17 94 V C C 71
215/55R17 94 V C C 71
215/55R17 94 V C C 71
215/55R17 94 V C C 71
215/55R17 94 V C C 71
225/50R17 98 V XL C C 72
225/50R17 98 V XL C C 72
225/50R17 98 V XL C C 72
205/50R17 93 V XL C C 72
225/50R17 98 V XL C C 72
205/50R17 93 V XL C C 72
205/50R17 93 V XL C C 72
205/50R17 93 V XL C C 72
205/50R17 93 V XL C C 72
225/50R17 98 V XL C C 72
225/50R17 98 V XL C C 72
205/50R17 93 V XL C C 72
205/50R17 93 V XL C C 72
225/50R17 98 V XL C C 72
205/50R17 93 V XL C C 72
225/50R17 98 V XL C C 72
225/45R17 94 V XL C C 72
225/45R17 94 V XL C C 72
225/45R17 94 V XL C C 72
225/45R17 94 V XL C C 72
225/45R17 94 V XL C C 72
225/45R17 94 V XL C C 72
225/45R17 94 V XL C C 72
215/45R17 87 V C C 70
225/45R17 94 V XL C C 72
215/45R17 87 V C C 70
215/45R17 87 V C C 70
215/45R17 87 V C C 70
215/45R17 87 V C C 70
215/45R17 87 V C C 70
215/45R17 87 V C C 70
215/45R17 87 V C C 70
215/55R17 94 W C C 71
215/55R17 94 W C C 71
225/50R17 98 Y XL C C 72
215/55R17 94 W C C 71
225/50R17 98 Y XL C C 72
225/50R17 98 Y XL C C 72
225/50R17 98 Y XL C C 72
215/55R17 94 W C C 71
215/55R17 94 W C C 71
225/50R17 98 Y XL C C 72
215/55R17 94 W C C 71
225/50R17 98 Y XL C C 72
225/50R17 98 Y XL C C 72
225/50R17 98 Y XL C C 72
215/55R17 94 W C C 71
215/55R17 94 W C C 71
225/45R17 94 W XL C C 72
225/45R17 94 W XL C C 72
225/45R17 94 W XL C C 72
225/45R17 94 W XL C C 72
225/45R17 94 W XL C C 72
225/45R17 94 W XL C C 72
225/45R17 94 W XL C C 72
225/45R17 94 W XL C C 72
215/55R17 98 W XL C C 72
215/55R17 98 W XL C C 72
215/55R17 98 W XL C C 72
215/55R17 98 W XL C C 72
215/55R17 98 W XL C C 72
215/55R17 98 W XL C C 72
215/55R17 98 W XL C C 72
215/55R17 98 W XL C C 72
225/50R17 98 W XL C C 72
225/50R17 98 W XL C C 72
225/50R17 98 W XL C C 72
225/50R17 98 W XL C C 72
225/50R17 98 W XL C C 72
225/50R17 98 W XL C C 72
225/50R17 98 W XL C C 72
205/50R17 93 W XL C C 72
205/50R17 93 W XL C C 72
225/50R17 98 W XL C C 72
205/50R17 93 W XL C C 72
205/50R17 93 W XL C C 72
205/50R17 93 W XL C C 72
205/50R17 93 W XL C C 72
205/50R17 93 W XL C C 72
205/50R17 93 W XL C C 72
225/45R17 91 Y C C 70
225/45R17 94 Y XL C C 72
225/45R17 91 Y C C 70
225/45R17 94 Y XL C C 72
225/45R17 91 Y C C 70
225/45R17 91 Y C C 70
225/45R17 91 Y C C 70
225/45R17 94 Y XL C C 72
225/45R17 94 Y XL C C 72
225/45R17 94 Y XL C C 72
225/45R17 91 Y C C 70
225/45R17 91 Y C C 70
225/45R17 94 Y XL C C 72
225/45R17 94 Y XL C C 72
215/45R17 87 W C C 70
215/45R17 87 W C C 70
225/45R17 91 Y C C 70
225/45R17 94 Y XL C C 72
215/45R17 87 W C C 70
215/45R17 87 W C C 70
215/45R17 87 W C C 70
215/45R17 87 W C C 70
215/45R17 87 W C C 70
215/45R17 87 W C C 70
215/45R17 91 W XL C C 72
215/45R17 91 W XL C C 72
215/45R17 91 W XL C C 72
215/45R17 91 W XL C C 72
215/45R17 91 W XL C C 72
215/45R17 91 W XL C C 72
215/45R17 91 W XL C C 72
215/45R17 91 W XL C C 72
18 inch
225/40R18 92 W XL C C 72
225/40R18 92 W XL C C 72
225/40R18 92 W XL C C 72
225/40R18 92 W XL C C 72
225/40R18 92 W XL C C 72
225/40R18 92 W XL C C 72
225/40R18 92 W XL C C 72
225/40R18 92 W XL C C 72
255/35R18 94 W XL C C 72
255/35R18 94 W XL C C 72
255/35R18 94 W XL C C 72
255/35R18 94 W XL C C 72
255/35R18 94 W XL C C 72
255/35R18 94 W XL C C 72
255/35R18 94 W XL C C 72
255/35R18 94 W XL C C 72
225/40R18 92 Y XL C C 72
225/40R18 92 Y XL C C 72
245/45R18 100 W XL C C 72
245/45R18 100 W XL C C 72
245/45R18 100 W XL C C 72
245/45R18 100 W XL C C 72
225/40R18 92 Y XL C C 72
225/40R18 92 Y XL C C 72
245/45R18 100 W XL C C 72
225/40R18 92 Y XL C C 72
225/40R18 92 Y XL C C 72
225/40R18 92 Y XL C C 72
245/45R18 100 W XL C C 72
245/45R18 100 W XL C C 72
245/45R18 100 W XL C C 72
225/40R18 92 Y XL C C 72
245/40R18 97 Y XL C C 72
245/40R18 97 Y XL C C 72
245/40R18 97 Y XL C C 72
245/40R18 97 Y XL C C 72
245/40R18 97 Y XL C C 72
245/40R18 97 Y XL C C 72
245/40R18 97 Y XL C C 72
245/40R18 97 Y XL C C 72
19 inch
235/35R19 91 Y XL C C 72
235/35R19 91 Y XL C C 72
235/35R19 91 Y XL C C 72
235/35R19 91 Y XL C C 72
235/35R19 91 Y XL C C 72
235/35R19 91 Y XL C C 72
235/35R19 91 Y XL C C 72
235/35R19 91 Y XL C C 72
View All Sizes and EU Label Scores for the Kormoran Ultra High Performance >>

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