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Dunlop Roadsmart IV GT View Gallery (1)

Dunlop Roadsmart IV GT

Dunlop Tires Premium Touring Summer

The Dunlop Roadsmart IV GT is a Premium Touring Summer tire designed to be fitted to Motorcycles.

8.1
Tire Reviews Score Based on Professional Tests
Limited Confidence View Breakdown
Dry Grip
100%
Wet Grip
100%
Road Feedback
80%
Handling
100%
Wear
70%
Comfort
90%
Buy again
100%
1 Reviews
91% Average
2,200 miles driven
1 Tests (avg: 3rd)
Dunlop Roadsmart IV GT

Dunlop Roadsmart IV GT

Summer Premium
BETA
8.1 / 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
Category Scores
Wet
71.5
2x / 2 tests
Cross-Category Performance

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

Handling
93.9
1 test
Braking
51.3
1 test
Score Components
Professional Tests
Weight: 80%
Tests: 1
Publications: 1
Period: 2024
User Reviews
Weight: 15%
Reviews: 1
Avg Rating: 91.4%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.8
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
Best Motorcycle Tires for 2024 Motorrad 2024 180/55 R17 3/6 2 metrics
All Tests
View Test Results
1
Tests
3rd
Average
3rd
Best
3rd
Worst
Latest Tire Test Results
Best Motorcycle Tires for 2024
180/55 R17 • 2024
3rd/6
Road: The Dunlop's standout feature is its agile handling. Even though the contour has been slightly tamed compared to its predecessor, it remains the most agile in the field. Sporty riders will be convinced by the good grip and feedback at higher speeds. Low pitch moment during braking.
Wet: Excellent wet grip combined with agile handling results in good lap times in the wet test. The limit range announces itself early, and the traction is above average, making it a predictable tire in bad weather.
Wear: It wears averagely but very homogeneously on the front and rear. The tread wear does not affect the handling; in direct comparison, it remains ahead of the competition in this discipline even at the end of the wear test.
Conclusion: The Dunlop is the most agile tire in the test, helping less agile vehicles and potentially feeling twitchy on already agile motorcycles. In everyday use, it impresses with its good wet grip and feedback.

Overall: Very Good..
View Test Results

Questions and Answers for the Dunlop Roadsmart IV GT

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June 4, 2024

Hello, is the Dunlop Roadsmart 4 GT recommended for a BMW R 1200 RS?

Assuming you can find the correct size and load index for your bike, then the Dunlop Roadsmart 4 GT is recommended for a BMW R 1200 RS. It's a sport-touring tire that offers a good balance of performance and longevity.
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Latest Dunlop Roadsmart IV GT Reviews

Given 91% while driving a BMW BMW K1600GTL (190/55 R17) on a combination of roads for 2,200 spirited miles
Had the V fitted for a number of years and found them to be a fantastic tire all round. Front tire did not last as long as the rear due to the weight of the bike and the K1600gtl being very front heavy. I now have the Road Smart IV and so far so good. I did a 2200 mile trip around Ireland this year 2025 with a every kind of road and conditions, both twist and motorway and lets say not so slow most of the time. Spent most of the time one up though full laden. The grip was never lacking and I felt confident in tone and on the open road, twisty or strait.
I would highly recommend the Road Smart 4
Helpful 235
December 17, 2025
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