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Radar RPX900

The Radar RPX900 is a High Performance Summer tyre designed to be fitted to Passenger Cars.

6.2
Tyre Reviews Score Based on User Reviews
Limited Confidence View Breakdown
Dry Grip
60%
Wet Grip
50%
Road Feedback
55%
Handling
53%
Wear
65%
Comfort
69%
Buy again
58%
9 Reviews
58% Average
38,602 miles driven
Radar RPX900

Radar RPX900

Summer Economy
BETA
6.2 / 10
Based on User Reviews · Limited 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
Score Components
Professional Tests
Weight: 80%
Tests: 0
Publications: 0
User Reviews
Weight: 15%
Reviews: 9
Avg Rating: 58.4%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.11
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
All Tests

Sorry, we don't currently have any magazine tyre tests for the Radar RPX900

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Top 3 Radar RPX900 Reviews

Given 85% while driving a Jeep Patriot (215/70 R16) on mostly motorways for 5,000 easy going miles
The ride is so smooth and very quiet. It is so comfortable driving with these tires. Driving style is easy going that is why, there are still a lot of life on the tires after driving for more than 5000 miles.
October 2, 2023
(195/55 R15) on mostly motorways for 2,000 spirited miles
Bought these a few months ago, for my Proton Iriz 1.3. Since i drive a small B-segment supermini. These tires are affordable. They have good grip during wet road, grips better during dry. Its much quieter. Just make sure the mechanic balances the tires and fits them properly according to the arrow on the exterior of the tire. Wash the tires twice a week to keep them clean & fresh. The wear is okay, 5 months a still is in 95% good condition. Also drove with these tires to my cars max speed of 157 km/h.. for 150 kilometers.. plus it comes with 3 year warranty. Well that sums it up. I will sure buy them again. Thanks and drive safe!..
March 13, 2018
Given 14% while driving a Dodge stratus rt coupe 3.0 (225/45 R17) on a combination of roads for 6,500 average miles
The worst tires I have ever owned. I would buy used tires before buying these again. Bought 4 new tires 18 months ago, and finally replaced them after being tired of them losing pressure, going flat (never a nail was found in any tire), and worst of all, wobbling at high speed as well as when accelerating from rest. Had the vendor try to balance them 3 times when new, never any improvement, even after a road-force balance. Ended up rebuilding the front end of my car, as the vendor assured me that the tires were NOT the problem. Finally, after 2 front tires were going flat and losing 10 psi per week, I was faced with the cost of $30 per patch, with the hopes that patching would stop leaks and not knowing how many patches would be needed, or if they would even work, as, again, I never had a nail puncture, they simply lost pressure... so ended up replacing them after a year and a half (they still had a good amount of tread). New tires, Falken SN211s, produced no wobble at high speed on highway. So it was the tires causing the wobble the whole time... awful, dreadful tires. Avoid at all costs. Do yourself a favor and spend an extra $100 and move up to a tire with a name you have heard of...
February 1, 2017

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Latest Radar RPX900 Reviews

Given 93% while driving a Dodge Dakota (205/65 R15) on a combination of roads for 2 spirited miles
These are totally awesome.1st Grrreat price,2 not noisy 3 really comfortable I have them pumped up to 44psi for long wear life. I will be buying 6 more next month for my other cars. These are being used in Florida, mostly local driving 60% city 40% highway. Oh Grreat mileage(gas) too.
August 11, 2015
Given 76% while driving a Volkswagen Golf (225/45 R17) on a combination of roads for 11,500 average miles
I bought a pair of tyres for my Golf last year and they are amazingly comfortable. Value for money is there and pattern is quite ok. I certainly buy again.
January 15, 2015
Check out how the BEST all seasons tyres perform against premium summer and winter tyres!
Given 56% while driving a Mitsubishi lancer (195/60 R15) on a combination of roads for 100 average miles
Cheap and cheerfull budget tyre. Threadwear 500 ? Really? ?. Traction during dry is ok for normal driving. During wet it behave same as those other brand within its class and price. Not recomended for trackday usage. Tyre is directional, you got inside & outside marking. Soft sidewall. comfort ride & quiet.

November 21, 2014
Given 27% while driving a Toyota Altis (205/55 R16) on mostly town for 10,000 average miles
Worst tyres i have tried. Its like driving on balloons. Making me sick while driving on highways. Totally useless tyres!
September 11, 2014
Given 46% while driving a Toyota Altis (225/45 R17) on a combination of roads for 1,000 average miles
These tyres are total crap. Side wall too soft making the car floats at high speed (120km/h & above).
January 3, 2014
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