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155-295/35-80 R14-21 112 sizes 2016 Winter rated

Austone SP 901

Austone Tyres High Performance Winter

The Austone SP 901 is a High Performance Winter tyre designed to be fitted to Passenger Cars.

6.4
Tyre Reviews Score Based on Professional Tests
High Confidence View Breakdown
Dry Grip
37%
Wet Grip
27%
Road Feedback
40%
Handling
33%
Wear
45%
Comfort
27%
Buy again
20%
Snow Grip
50%
Ice Grip
33%
3 Reviews
35% Average
24,000 miles driven
4 Tests (avg: 26th)
Austone SP 901

Austone SP 901

Winter Budget
BETA
6.4 / 10
Based on Professional Tests · High 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
Category Scores
Comfort
91.9
0.32x / 2 tests
Snow
91.3
1.5x / 7 tests
Value
60.4
0.42x / 4 tests
Dry
53.1
1.13x / 3 tests
Ice
47.5
1.2x / 1 test
Wet
45
1.93x / 10 tests
Cross-Category Performance

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

Traction
88.8
2 tests
Braking
61.8
11 tests
Handling
59
3 tests
Score Components
Professional Tests
Weight: 80%
Tests: 4
Publications: 3
Period: 2022 - 2023
User Reviews
Weight: 15%
Reviews: 3
Avg Rating: 34.6%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.51
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
2023 Sports Cars Winter Tyre Test Auto Bild Sportscars 2023 225/40 R18 10/12 12 metrics
2023 ADAC 16 Inch Tyre Test ADAC 2023 205/60 R16 16/16 12 metrics
2023 Winter Tyre Test 54 Set Braking Test Auto Bild 2023 225/45 R18 24/54 2 metrics
2022 Winter Tyre Market Overview Auto Bild 2022 215/55 R17 52/57 1 metrics
All Tests
View Test Results
4
Tests
26th
Average
10th
Best
52nd
Worst
Latest Tyre Test Results
2023 Sports Cars Winter Tyre Test
225/40 R18 • 2023
10th/12
Good winter qualities, favorable price.
Significantly limited driving safety on wet and dry track, unbalanced driving behavior, vague steering, dangerously long wet braking distances.
Not recommended.
2023 ADAC 16 Inch Tyre Test
205/60 R16 • 2023
16th/16
The AUSTONE ATHENA SP-901 provides barely adequate steering feedback and is imprecise on dry roads, requiring constant corrections. It tends to oversteer early in dynamic maneuvers, earning it a barely adequate rating for limit behavior. Its braking performance on dry roads is average but rated as good. On wet roads, the tyre struggles significantly. Its braking distance is rated as barely adequate, and while it earns a satisfactory rating for longitudinal aquaplaning, it performs poorly in lateral aquaplaning and handling due to low grip levels and early understeer/oversteer tendencies. On winter roads, however, the tyre excels, showing the best behavior in the test. It handles securely and precisely on snow, with good results in braking and traction tests. Its ice braking performance is rated as satisfactory. Environmentally, the tyre misses a good rating. Its projected lifespan is rated as satisfactory, and although its wear is rated as good, its high weight results in an adequate efficiency rating.
2023 Winter Tyre Test 54 Set Braking Test
225/45 R18 • 2023
24th/54

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Show All Winter High Performance tyres
Size Fuel Wet Noise
14 inch
165/70R14 85 T XL D D 71
185/70R14 88 T D D 71
175/65R14 86 T XL D D 71
185/60R14 86 H XL D D 71
15 inch
235/75R15 109 T XL D C 69
185/65R15 88 H D D 71
195/65R15 91 H D D 72
195/55R15 85 H D D 72
16 inch
215/70R16 100 T D C 72
205/60R16 92 H D D 72
205/60R16 96 H XL D D 72
215/60R16 99 H XL D C 72
205/55R16 91 H D D 72
205/55R16 94 H XL D D 72
17 inch
215/55R17 94 H D C 72
235/65R17 108 V XL D C 69
265/65R17 116 H XL D C 73
225/60R17 99 H D C 72
215/55R17 98 V XL D C 72
205/50R17 93 V XL D D 72
225/50R17 98 V XL D C 72
215/45R17 91 V XL D C 72
225/45R17 94 V XL D C 72
18 inch
235/60R18 107 V XL D C 69
245/45R18 100 V XL D C 69
225/40R18 92 V XL D C 72
245/40R18 97 V XL D C 72
19 inch
235/35R19 91 W XL D D 72
View All Sizes and EU Label Scores for the Austone SP 901 >>

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Latest Austone SP 901 Reviews

Given 44% while driving a Toyota RAV4 (225/60 R16) on a combination of roads for 19,000 easy going miles
Tires feel fine on dry roads but on wet roads they fall off. Snow grip is good, ice grip is non-existent. Tires wear pretty evenly and probably have another 20-25 thousand miles on the road. Tires are noisy, especially in the wet. Bumpy roads are a nightmare. Would not recommend as you can get something much better for a few more bucks.
Helpful 858
May 17, 2022
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