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205-275/35-60 R16-21 50 sizes 2024 Winter rated

Triangle Effexwinter

Triangle Tires Touring Winter

The Triangle Effexwinter is a Touring Winter tire designed to be fitted to Passenger Cars.

6.3
Tire 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%
1 Tests (avg: 7th)

Triangle Effexwinter

Winter Economy
BETA
6.3 / 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
Comfort
100
0.32x / 2 tests
Value
68.7
0.42x / 4 tests
Wet
66.2
1.93x / 5 tests
Dry
63.1
1.13x / 3 tests
Snow
60.6
1.5x / 5 tests
Cross-Category Performance

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

Braking
81.1
3 tests
Traction
64.8
1 test
Handling
49.8
6 tests
Score Components
Professional Tests
Weight: 80%
Tests: 1
Publications: 1
Period: 2025
User Reviews
Weight: 15%
Reviews: 0
Avg Rating: 0%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 1.17
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
2025 AZ Performance Winter Tire Test Auto Zeitung 2025 245/45 R19 7/10 19 metrics
All Tests
View Test Results
1
Tests
7th
Average
7th
Best
7th
Worst
Latest Tire Test Results
2025 AZ Performance Winter Tire Test
245/45 R19 • 2025
7th/10
The Triangle EffeXWinter TW421 represents the cheapest option in this test at just 87.50 euros per tire, but significant performance compromises accompany that low price. On snow, the tire manages acceptable grip levels though it becomes unstable in borderline conditions and exhibits sensitive responses to load changes that score only 12/30 for driving safety - not confidence-inspiring when conditions deteriorate. In wet weather, it delivers the second-best braking result surprisingly, and drives with pleasingly stable characteristics scoring 30/45 for safety, showing that budget tires can perform respectably in some areas. Dry performance reveals the best exterior noise result at 70.3 dB(A) and strong braking, though the handling suffers from instability during load changes scoring 13/30 for safety. The tire's environmental credentials are poor with high wear of 0.223 mm per 1000 km, short projected life of only 27,500 km, and the shortest actual lifespan in the test. While it offers the lowest cost per kilometer at 3.18 euros, this calculation doesn't account for the safety compromises. The Triangle might suit extremely budget-conscious buyers in regions with minimal winter conditions, but its unpredictable handling and poor durability make it difficult to recommend.
View Test Results
Size Fuel Wet Noise
16 inch
205/55R16 94 V C B 72
17 inch
215/55R17 98 V C B 72
225/45R17 94 V D B 72
18 inch
245/40R18 97 V XL C B 72
245/45R18 100 V XL C B 72
225/40R18 92 V XL D B 72
235/60R18 107 V C B 72
20 inch
255/45R20 105 W XL C B 73
245/35R20 95 W D B 72
View All Sizes and EU Label Scores for the Triangle Effexwinter >>

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