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Grenlander GreenWing AS

The Grenlander GreenWing AS is a Touring All Season tire designed to be fitted to Passenger Cars.

5.5
Tire Reviews Score Based on Professional Tests
Medium Confidence View Breakdown
Dry Grip
65%
Wet Grip
55%
Road Feedback
45%
Handling
100%
Wear
80%
Comfort
75%
Buy again
55%
Snow Grip
50%
Ice Grip
45%
2 Reviews
63% Average
5,000 miles driven
1 Tests (avg: 6th)
Grenlander GreenWing AS

Grenlander GreenWing AS

All Season Budget
BETA
5.5 / 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
Ice
100
0.84x / 2 tests
Value
75.6
0.42x / 1 test
Comfort
73.3
0.32x / 2 tests
Snow
73.2
1.38x / 4 tests
Wet
40
1.93x / 6 tests
Dry
40
1.5x / 3 tests

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

Traction
90.4
2 tests
Braking
60.9
5 tests
Handling
46.7
6 tests
Score Components
Professional Tests
Weight: 80%
Tests: 1
Publications: 1
Period: 2024
User Reviews
Weight: 15%
Reviews: 2
Avg Rating: 63.3%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 1.55
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 All Season Tires for 2024 / 2025 Tire Reviews 2024 235/35 R19 6/9 18 metrics

Videos

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1
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Latest Tire Test Results
High performance in snow conditions, top-rated for ice traction, lowest noise levels in the test group.
Lowest dry grip performance, wet grip 45% below top performer, lowest aquaplaning resistance, below-average refinement, highest rolling resistance in test group.
The Grenlander Greenwing AS was good on snow, the best on ice and very quiet, but that's where the positives end. It had awful grip in the dry, really awful grip in the wet - 45% worse than the best, awful aquaplaning resistance, poor refinement and a high rolling resistance. It's an all season tire that only works in the most extreme parts of winter, which I'm pretty sure indicates it's a cheap soft winter compound from a budget manufacturer that they just put an all season sidewall plate on to try and sell some tires. Don't do it.
Size Fuel Wet Noise
13 inch
155/80R13 79 T D C 69
155/80R13 79 T D C 68
14 inch
175/65R14 82 T D C 69
185/70R14 88 H D C 69
165/70R14 81 T D C 69
185/60R14 82 H D C 69
165/70R14 85 T XL D C 68
185/70R14 88 H D C 68
185/60R14 82 H D C 68
175/65R14 82 T D C 68
15 inch
195/65R15 95 V XL C C 70
195/65R15 91 H C C 70
185/65R15 92 T XL D C 69
195/55R15 85 H D C 70
195/65R15 91 H D C 69
185/65R15 88 H D C 68
195/65R15 95 V XL D C 69
195/55R15 85 V D C 69
16 inch
205/55R16 91 V C C 71
205/60R16 96 V XL C C 71
205/55R16 94 V XL C C 71
215/70R16 100 H C C 71
205/55R16 91 H C C 71
215/60R16 99 H XL C C 71
215/70R16 100 H D C 69
205/60R16 96 V XL D C 69
215/60R16 99 V XL D C 69
205/55R16 91 H D C 69
205/55R16 94 V XL D C 69
17 inch
225/60R17 99 H C C 71
235/65R17 108 H XL C C 71
215/55R17 98 W XL C C 71
225/45R17 94 W XL C C 71
215/45R17 91 W XL C C 71
205/50R17 93 W XL C C 71
225/50R17 98 W XL C C 71
215/45R17 91 W XL D C 69
225/50R17 98 W XL D C 69
235/65R17 108 H XL D C 69
225/60R17 99 H D C 69
205/50R17 93 W XL D C 69
215/55R17 98 W XL D C 69
225/45R17 94 W XL D C 69
18 inch
235/60R18 107 V XL C C 72
245/45R18 100 W XL C C 72
225/40R18 92 W XL C C 71
245/40R18 97 W XL C C 72
245/40R18 97 W XL D C 69
225/40R18 92 Y XL D C 69
235/60R18 107 V XL D C 69
245/45R18 100 W XL D C 69
19 inch
235/35R19 91 W XL C C 72
235/35R19 91 W XL D C 69
20 inch
255/45R20 105 W XL C C 72
245/35R20 95 W XL C C 72
255/45R20 105 W XL D C 70
245/35R20 95 W XL D C 69
View All Sizes and EU Label Scores for the Grenlander GreenWing AS >>

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Latest Grenlander GreenWing AS Reviews

Given 92% while driving a Toyota (225/65 R17) on a combination of roads for 0 average miles
Great tire for the price. Very quiet and does well in the rain. Used in the winter as well and it's great in the snow.
December 6, 2025
Given 20% while driving a Toyota RAV4 (225/45 R17) on a combination of roads for 5,000 easy going miles
I have Grenlander tires fitted to two separate cars (an SUV and a plug in hybrid). I got them as emergency replacements for irreparable tire issues as there was nothing else in stock at the garage. Been driving for a while on dry and wet roads and these tires are unfit for purpose and borderline a safety issue. They provide marginal grip under dry circumstances and seriously lose grip and control (slip, lose adherence to the road) on wet or muddy roads. Both cars are unstable, with visible signs of asymmetric (lower) brake efficiency on the side where a Grenlander is fitted. Since fitting them, traction control kicks in more often to address loss of grip and control when changing road surface (e.g. between segments of motorway, at crossroads etc.). I have the tires fitted to the rear axles so can only imagine how unsafe using them on the front wheels is (understeering, loss of control etc.)

Overall:
1. Would not EVER consider them again if anything was available
2. This brand is an absolute public / road safety hazard
3. Do not recommend for use or purchase
January 23, 2025
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