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Westlake Radial RP18

The Westlake Radial RP18 is a Touring Summer tyre designed to be fitted to Passenger Cars.

6.7
Tyre Reviews Score Based on User Reviews
Limited Confidence View Breakdown
Dry Grip
80%
Wet Grip
70%
Road Feedback
72%
Handling
73%
Wear
75%
Comfort
67%
Buy again
64%
25 Reviews
72% Average
153,852 miles driven
1 Tests (avg: 10th)
Westlake Radial RP18

Westlake Radial RP18

Summer Budget
BETA
6.7 / 10
Based on User Reviews · Limited Confidence · Updated 30 Jan 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: 1
Publications: 1
Period: 2014
User Reviews
Weight: 15%
Reviews: 25
Avg Rating: 71.7%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 1.99
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 1.8 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 8 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 0.1 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
Data Sources
TestPublicationDateSizePositionMetrics
2014 AMS Summer Tyre Test - 205/55 R16 Auto Motor Und Sport 2014 205/55 R16 10/11 0 metrics
1
Tests
10th
Average
10th
Best
10th
Worst
Latest Tyre Test Results
10th/11
At a low level a balanced, quiet tyre
Weak wet and dry performance, low-precision steering, wet roads load change sensitivity issues

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Review Summary

Based on 23 user reviews

Drivers are split on the Westlake Radial RP18: many high-scoring reviews praise its low price, solid dry grip, and especially strong treadwear for a budget tyre, with some reporting low noise and good comfort. However, a substantial minority report pronounced road noise and weaker wet grip, with a few citing longer braking distances and discomfort. Overall sentiment is mixed-to-positive, with value and durability as key strengths and wet/noise concerns as the main trade-offs.

Strengths
  • Good treadwear/durability
  • Value for money/low price
  • Decent dry grip and handling
  • Acceptable comfort for some users
Areas for Improvement
  • High road noise
  • Weak wet traction
  • Longer braking distances for some

Top 3 Westlake Radial RP18 Reviews

Given 50% while driving a Hyundai XG30 (205/60 R16) on a combination of roads for 5,000 average miles
These are the tires that came on my car when I bought it used. They have roughly 5,000 miles and appear to be wearing fairly normally. They are super squishy and soft. This is good and bad causing a very smooth ride but little feedback through the steering wheel. On a dry clean surface, I can launch my car with no difficulty or tire spin. When the surface is wet or covered with leaves I can not leave a stop with more than 1/3 power. If I do these tires spin like they are on a hockey rink. with the weather in where I live this is a common problem that I run into pretty requirly. For this reason, I will not be buying these tires and plan on replacing them because I believe this problem will just get worse with time.
Ask a question | Helpful 1024
December 11, 2024
Given 89% while driving a Chevrolet Onix (205/70 R15) on a combination of roads for 20 average miles
I agree with the comment saying that “cheap tyre” is somewhat unfair because this word passes a perception of poor quality product. I’ve driven 20 thousand miles with my westlakes in all kinds of roads and terrain and they are quite good in any aspect, specially wear. They still look like new. Will buy again. Definitely.
August 9, 2024
Given 30% while driving a Mitsubishi mirage dohc (175/65 R14) on a combination of roads for 0 average miles
The tires seem to grip and handle alright but they are the noisiest tires I've ever had in my life. I'm 62. I can't hear myself think. The tires have about 5,000 miles on them. They are so noisy I hate to have to drive the car. LOUD!
September 22, 2024
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Latest Westlake Radial RP18 Reviews

Given 67% while driving a Toyota Camry (215/60 R16) on mostly town for 1,500 average miles
I actually have RP38 on my Camry 2005. It is very affordable that's why I bought it. It is quite stiff and smells like a rubber ball of a basketball which I find is unusual. The dry performance is great while the wet performance is decent. The wear is also very good. My 2 complains are it is quite stiff unlike its competitors and is noisy. There is a humming sound at 40kph. Overall, I would still recommend this to thise who are looking for really cheap brand new tires.
December 1, 2023
Given 72% while driving a Toyota Tercel (195/60 R14) on a combination of roads for 2,000 spirited miles
I needed tires for my autoX competition car when I am not racing it. Primarily during winter months.

I purposely run a slight upsize to aid in ride comfort to help dull out the stiff suspension.

Price drove the decision. In all honesty I really like these tires for what they are. Surprisingly decent in the dry. Wet traction does suffer but as long as your mindful with your inputs its work able. I actually found myself driving around on these quite a bit this year chasing some tuning issues and I didnt want to cycle out the race tires.

Would absolutely consider again if I need another budget tire for a similar, non-primary driving situation.
November 18, 2023
Check out how the BEST all seasons tyres perform against premium summer and winter tyres!
Given 86% while driving a Toyota Corolla (205/70 R15) on a combination of roads for 40 miles
Im surprised by the excellent cost/benefit of this tire. Very good treadwear (looks like new after 12,000 km) very comfortable ride, low noise. I drive my Toyota Corolla about 60% of the time on the road and 40% within cities and could not be happier. I do recommend this tire. Instead of being classified as cheap tires, they should be classified as low cost tires. This sounds much better and is more respectful for both the manufacture and the customers.
October 14, 2023
Given 57% while driving a Peugeot 208 1.6 vti (195/55 R16) on mostly country roads for 15,000 average miles
Bad confort
October 10, 2023
Given 83% while driving a Toyota Corolla (205/70 R15) on a combination of roads for 7 average miles
They say west lake is a “cheap tire” but the word “cheap” passes the wrong idea that these are low quality tires which they are not. After eight months driving a set of RP18’s through streets with lots of pot holes and poor or good quality asphalt, I’ve noticed that these are just typical touring tires, the same as Pirellis, Continentals and so on. They generate low noise level and after 10,600 km the treads look like new. I’m well impressed about their performance on dry and wet roadso. I had Dunlops, Michelins and Bridgestones installed in my cars before trying the Westlake and I everyone to stop criticizing this Westlake brand just because their tires are a Chinese brand. After all Chinese products are being criticized (pure nonsense) the same way as the Japanese products and cara were criticized when they arrived in western markets on early sixties and seventies. Now take a look on Japanese brands image and customer’s perception at the present time. Let’s wake up my friends!!!
June 26, 2023
Given 86% while driving a Chevrolet Malibu LTZ (195/70 R15) on a combination of roads for 12 average miles
Decided to try the RP18, and has been gotten by surprise. Although it is classified as a cheap tyre -which usually means low quality- it performs the same as Continental, Goodyear and other famous brands. No way they produce excessive noise nor that wears fast, are not comfortable etc. It’s an excellent and reliable tyre. What is the problem to be made in China? After all most of the computer and high tech stuffs like Apple and Lenovo computers are almost totally made with Chinese parts. My four Westlake RP 18 are performing very well after over 12,000 miles after replacing Continentals and still look brand new.
My driving style: mixed from fast to slow in several roads and mixed streets, some in farms full of potholes.
May 5, 2023
Given 74% while driving a Toyota Tercel (195/60 R14) on mostly country roads for 100 average miles
I only have less then 100miles on these. So far much nicer then the 10yo Falken 912s they replaced. These are a slight oversize for my car to help cope with the race spec suspension on my car which is set up for competitive autocross. The tires might see 1000miles a year. So I did not need anything special. Just something for the offseason and inbetween races. The car is not driven much beyond racing it, if I do its to work on it or the occasional cars and coffee. I might do some race stints far away next season so these will be my travel tires to avoid anything happening to the Falken 660s I race on. So far the ride is most excellent. Like disturbingly good. And the grip is actually decent given the design criteria. The few times I purposely pushed the car in the wrong places to see what they would do resulted in fine dry grip and manners. No rain or snow yet. Steering inputs are smooth and direct. I run the tires at 28psi front, 26 rear...car weights 2100lbs. Fwd turbo. I do not hoon much on the street the car is numbered and stickered up so generally pretty average other then some WOT pulls when I am working on ECU tunes.
January 15, 2023
Given 80% while driving a Toyota Vios (195/55 R15) on a combination of roads for 39,000 average miles
One off the best tyres. Cheapest price.
October 21, 2022
Given 19% while driving a Mercedes Benz C240 (/60 R16) on a combination of roads for 143 average miles
Real noisy tire. Cheap made, Won't buy again
December 3, 2021
Given 51% while driving a Volkswagen Beetle 1303 1.6L (195/65 R15) on mostly town for 2,000 easy going miles
This was the first time I switched to West Lake after using bigger brands like Bridgestone, Goodyear, etc. The West Lake tires are good in dry and wet conditions for regular every day drive. Actually, I felt very confident in my VW beetle with these tires. Having said that, the tires were so uncomfortable and noisy. I swapped them out after using for 6 months. My wife was pregnant and said that the baby might come out sooner if I continue to keep these on. STAY AWAY.
November 15, 2021
Given 63% while driving a Peugeot 408 2.0 16V (205/55 R16) on mostly motorways for 18,000 easy going miles
Tried these after my original Goodyear's last for about 60.000 km, so far at 30.000km seems it reached half life or so, not sure if it will last another 30k, probably 20k. Fits good, but wet performance is poor, I don't trust them above 100km/h. You get what you are paying for. I'd look for another brand on next set, probably would go Goodyear again.
June 15, 2021
Given 97% while driving a Chevrolet Spark (185/55 R15 H) on mostly town for 10,000 average miles
The best tires I ever bought... the return every penny on safety, comfort and efficiency
September 29, 2018