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Royal Black Royal AS II View Gallery (1)
175-235/50-70 R14-20 25 sizes 2022 Winter rated

Royal Black Royal AS II

The Royal Black Royal AS II is a Touring All Season tire designed to be fitted to Passenger Cars.

2.6
Tire Reviews Score Based on Professional Tests
Limited Confidence View Breakdown
Dry Grip
80%
Wet Grip
90%
Road Feedback
70%
Handling
90%
Wear
0%
Comfort
90%
Buy again
100%
Snow Grip
80%
Ice Grip
80%
1 Reviews
85% Average
4,000 miles driven
1 Tests (avg: 37th)
Royal-Black Royal AS II

Royal-Black Royal AS II

All Season Budget
BETA
2.6 / 10
Based on Professional Tests · Limited 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
Dry
52.6
1.5x / 1 test
Wet
40
1.93x / 1 test

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

Braking
45.9
2 tests
Score Components
Professional Tests
Weight: 80%
Tests: 1
Publications: 1
Period: 2024
User Reviews
Weight: 15%
Reviews: 1
Avg Rating: 85%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 1.08
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
2024 All Season Tire Market Overview Auto Bild 2024 225/50 R17 37/37 2 metrics
1
Tests
37th
Average
37th
Best
37th
Worst
Latest Tire Test Results
37th/37
Size Fuel Wet Noise
14 inch
185/70R14 88 H C C 70
175/65R14 86 T XL C C 70
15 inch
185/65R15 88 H C C 70
185/65R15 92 T XL C C 70
195/65R15 91 H C C 71
16 inch
205/60R16 96 H XL C B 71
215/60R16 99 H XL C B 71
205/55R16 94 W XL C B 71
205/55R16 94 W XL C B 71
205/55R16 94 W XL C C 71
17 inch
235/65R17 108 V XL C C 71
235/65R17 108 V XL C B 71
215/55R17 98 W XL C B 71
225/45R17 94 W XL C B 71
225/50R17 98 W XL C B 71
215/55R17 98 W XL C B 71
225/45R17 94 W XL C B 71
225/50R17 98 W XL C B 71
205/50R17 93 W XL C B 71
205/50R17 93 W XL C B 71
225/50R17 98 W XL C C 71
225/45R17 94 W XL C C 71
215/55R17 98 W XL C C 71
205/50R17 93 W XL C C 71
18 inch
235/60R18 107 V XL C C 71
235/60R18 107 V XL C B 71
245/45R18 100 W XL C B 71
245/40R18 97 W XL C B 71
225/40R18 92 W XL C B 71
245/40R18 97 W XL C B 71
225/40R18 92 W XL C B 71
245/40R18 97 W XL C C 71
245/45R18 100 W XL C C 71
225/40R18 92 W XL C C 71
19 inch
235/35R19 91 W XL C B 71
235/35R19 91 W XL C B 71
235/35R19 91 W XL C C 71
View All Sizes and EU Label Scores for the Royal Black Royal AS II >>

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Latest Royal Black Royal AS II Reviews

Given 85% while driving a Honda CRV (235/65 R17) on a combination of roads for 4,000 average miles
Bought these at a great price on Online for my CRV AWD 235 65 17 set of 4, first time trying All season Tires coming from a set of worn Dunlop SP sportmaxx 050 tires, I think these are very good tires for the price vs the performance they improved driving in snow a lot ,grip was far better than I could have expected minimum wheel spin got me up some tricky hills in fairly deep snow tires really stay soft and supple in below zero temps, MPG the same as my Summer tires. Would buy again only drawback is slightly noisier on dry roads but not unbearably so this could be because they are directional tires with a v shaped tread over all very happy with the purchase and tires exceeded my expectations, not sure why the established brands get away with the prices they charge. I wanted to buy Michelin cross climate tires but the price of nearly £200 per tire fitted was scandalous, this set of Tires cost me £300 fitted £360 vs £800 for CC2s
January 18, 2025
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