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Leao Winter Defender UHP

The Leao Winter Defender UHP is a Ultra High Performance Winter tyre designed to be fitted to Passenger Cars.

6.6
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%
Snow Grip
0%
Ice Grip
0%
2 Tests (avg: 10th)
Leao Winter Defender UHP

Leao Winter Defender UHP

Winter Economy
BETA
6.6 / 10
Based on Professional Tests · Medium Confidence · Updated 30 Jan 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
63.3
0.38x / 4 tests
Dry
55.2
1.2x / 6 tests
Comfort
54.3
0.29x / 4 tests
Snow
51.8
1.5x / 8 tests
Wet
43
2x / 9 tests

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

Braking
57.4
6 tests
Traction
49.8
2 tests
Handling
43.5
12 tests
Score Components
Professional Tests
Weight: 80%
Tests: 2
Publications: 1
Period: 2023
User Reviews
Weight: 15%
Reviews: 0
Avg Rating: 0%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.18
History Points: 6
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 1.8 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 8 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 0.1 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
Data Sources
TestPublicationDateSizePositionMetrics
2023 Tyre Reviews SUV Winter Tyre Test Tyre Reviews 2023 235/60 R18 9/9 17 metrics
2023 Tyre Reviews Winter Tyre Test Tyre Reviews 2023 225/45 R18 11/13 14 metrics
2
Tests
10th
Average
9th
Best
11th
Worst
Latest Tyre Test Results
11th/13
Low rolling resistance.
Worst grip in the dry, wet and snow. Extremely long wet braking distances.
Last place was the cheap tyre, its only redeeming quality was the price and the rolling resistance levels, but if you're looking for good levels of grip in the dry, wet or snow, maybe pick another tyre from the results.
Best dry braking, low rolling resistance.
Low grip in the dry, wet, and snow, uncomfortable.
The Leao Winter Defender UHP was the best in dry braking, but it was the worst in all the wet grip tests, the worst in most of the snow tests, and was pretty noisy / uncomfortable. It did have the 4th best rolling resistance though.
Size Fuel Wet Noise
15 inch
195/55R15 85 H D C 72
17 inch
205/50R17 93 V XL C C 72
215/45R17 91 V XL D C 72
215/55R17 94 V D C 72
225/45R17 94 V XL D C 72
225/50R17 98 V XL D C 72
18 inch
225/40R18 92 V XL D C 72
235/60R18 107 H XL C C 72
245/40R18 97 V XL D C 72
245/45R18 100 H XL C C 72
View All Sizes and EU Label Scores for the Leao Winter Defender UHP >>

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