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Nokian zLine

The Nokian zLine is a Max Performance Summer tire designed to be fitted to Passenger Cars.

8.5
Tire Reviews Score Based on Professional Tests & User Reviews
Medium Confidence View Breakdown
Dry Grip
91%
Wet Grip
90%
Road Feedback
89%
Handling
87%
Wear
76%
Comfort
85%
Buy again
82%
83 Reviews
86% Average
698,815 miles driven
15 Tests (avg: 8th)
Nokian zLine

Nokian zLine

Summer Mid-Range
BETA
8.5 / 10
Based on Professional Tests & User Reviews · Medium 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
73.8
1.8x / 4 tests
Wet
73
2x / 4 tests
Comfort
72.6
0.32x / 1 test
Value
65.2
0.42x / 2 tests

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

Handling
76.2
4 tests
Braking
70.8
4 tests
Score Components
Professional Tests
Weight: 80%
Tests: 14
Publications: 8
Period: 2013 - 2018
User Reviews
Weight: 15%
Reviews: 83
Avg Rating: 85.8%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.34
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
2018 Auto Express Summer Tire Test Auto Express 2018 225/45 R17 9/10 0 metrics
2018 Ace 235/45 R18 Summer Tire Test ACE 2018 235/45 R18 2/11 0 metrics
2017 Auto Bild UHP Tire Test Auto Bild Sportscars 2017 245/40 R18 6/9 6 metrics
2017 Auto Bild Summer Tire Test Auto Bild 2017 225/50 R17 15/20 5 metrics
2017 AZ Summer Tire Test Auto Express 2017 215/55 R17 5/10 0 metrics
2017 Auto Bild Summer Tire Shootout Auto Bild 2017 225/50 R17 20/43 0 metrics
2016 GTU Performance Summer Tire Test 2016 225/45 R17 6/14 0 metrics
2016 ADAC Tire Test - 225/45 R17 ADAC 2016 225/45 R17 7/16 0 metrics
2015 Sport Auto 235/35 R19 UHP Tire Test Auto Express 2015 235/35 R19 5/7 0 metrics
2015 AMS Performance Tire Test Auto Motor Und Sport 2015 225/50 R17 6/9 0 metrics
2015 AZ 225/40 R18 Summer Tire Test Auto Zeitung 2015 225/40 R18 5/14 0 metrics
2014 Auto Zeitung Summer Tire Test Auto Zeitung 2014 225/50 R17 9/12 0 metrics
2014 Auto Bild 50 Summer Tire Shootout Auto Bild 2014 225/50 R17 16/50 0 metrics
2013 Sport Auto Max Performance Summer Tire Test Sport Auto 2013 225/40 R18 5/10 0 metrics
15
Tests
8th
Average
2nd
Best
20th
Worst
Latest Tire Test Results
2nd/11
9th/10
Low rolling resistance.
Very weak dry performance, average wet performance.
20th/43

Questions and Answers for the Nokian zLine

Ask a question
January 17, 2018

Looking to replace 265/45 21 104 Dunlop SP Sport 01s on an Infiniti QX70 with something newer and better. Nokian Zline SUV and Dunlop Sport Maxx RT 2 seem about the same on eu label and reviewer scores. However, even though both are High Performance Summer tires would the Nokian have the edge in colder temperatures and on snow ? The A/S version is US only and not made in 265/45 21 in any case.

While Nokian Tires do specialise in winter tires, the zLine is a UHP summer so it's unlikely to have a significant performance advantage over the Dunlop in cold / snow.
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Size Price Range  
Available in 2 tire sizes - View all.

Top 3 Nokian zLine Reviews

Given 10% while driving a Citroën (205/55 R17) on mostly motorways for 8,000 easy going miles
This is Nokian's 4th year with 15000 km.
Dead...
December 20, 2023
Given 87% while driving a Peugeot 407Hdi (215/55 R17) on a combination of roads for 31,000 average miles
I have had them for 51.000km (31K miles) as my front tires of my Peugeot 407 2.0. I was a bit worried initially because I lost 2mm too quickly to my taste but then the deterioration stabilized and I had a good driving experience in all conditions (particularly with rain). After 51K kms the tires are
May 10, 2016
Given 93% while driving a Honda Accord (225/40 R18) on mostly motorways for 3,425 average miles
I am in Canada and I got these tires about 3 months ago. The tire shop I went to (Kal-Tire) suggested these tires. I told them I did not want cheap tires. I wanted mid to high-end. I've always known that Nokian tires were very good as they have been in the industry for a long time. And are extremely trusted. Usually you see nokian tires on high end German cars. It has been 3 months now as I was saying and these tires are superb. They are very quiet. And the grip is pretty insane. And they seem to wear pretty slow at least for me. Cuz I've had them on for 3,400 + miles and the treads almost still looks brand new. These tires have built-in wear indicators that actually tell you the percentage left on the tire so there is no guessing. They're definitely really good high performance tires. People say that they don't do good when it's wet. But I haven't had any issues except when I hit deep water on the highway. And I hydroplane a little bit but again it doesn't matter what tires you have, if you hit deep water you're going to hydroplane no matter what with all brands. I got these tires in the beginning of Summer so I can only attest to how they perform during the summer. I guess we will see how they do in the winter. I'm going to try them in the winter for a little bit. But not for long because I have another set of snow tires and I don't want to ruin these ones. As for the price I guess it really depends on where you are in the world. Mine cost $270 CAD per tire. So they are definitely pretty expensive but not at the top. I researched for a long time before I got these tires and I am happy with them. I did not want cheap Chinese tires and opted for Nokian and I couldn't be happier. They are a mid to high end Tire and aren't much cheaper than some Continentals.
August 4, 2022

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Latest Nokian zLine Reviews

Given 64% while driving a Alfa Romeo 1.9 JTD M (225/40 R18) on mostly town for 3,000 easy going miles
My z Line tires has side cracks all around diamerte. The tires are only 4 years. I dont feel safe driving witn my nokian tires. Try to send you mail, but no respond
August 5, 2022
Given 94% while driving a Opel insignia (245/45 R18) on mostly country roads for 60,000 spirited miles
You don't need to spend more money for other brand tires. You will be amazed by its performance on wet and dry surfaces. You will be angry with yourself for not trying these tires before. I definitely recommend it.
June 28, 2022
Check out how the BEST all seasons tires perform against premium summer and winter tires!
Given 59% while driving a Saab Automobile 9 3 Vector Sport TiD 150 Saloon (225/45 R17) on a combination of roads for 10,000 average miles
I purchased them to replace Michelin Primacy... and it was mistake. Wet performance is extremely poor on these, and I will recommend anyone to stay away from these as on wet they are for brave people. They glide on little wet. They are ok on dry, but I expected much more from Nokian, especially from they elevated prices. Unfortunately Nokian is known to be well in tests and poor in real life. If I would new it before purchasing, I would buy something else. Good that they discounted this model, I do not know how current are performing, but never more Nokian for me.
May 7, 2020
Given 79% while driving a Renault Megane RS250 (225/35 R19) on a combination of roads for 10,000 spirited miles
Great int he wet, little soft in dry
January 22, 2020
Given 86% while driving a BMW 523i tourer (225/55 R17 W) on a combination of roads for 8,000 average miles
#2# I fitted these tires to replace the previous very good Nokian G2. I noticed immediately also a good field in dry and wet conditions. I was impressed by these tires I had essentially chosen for the very low price. The only flaw I noticed is that they seem a bit too soft. High comfort level for low price.
April 17, 2019
Given 100% while driving a Saab Automobile 9 5 Aero Wagon (235/45 R17 W) on mostly country roads for 30 average miles
I just can't score these any higher. I have them on a 2006 Saab 95 Aero Combi and I got 30,000km from them which is the most I ever got on that car. I always used Goodyear Eagle F1s on it before but they were getting very expensive so tried the zLine. In the wet they are so much better than the Goodyear, the water they throw up is massive compared to the Goodyear F1 and they actually aren't bad in snow either. I found their ability to hold air much better too, I check my pressure twice a week and they may drop 1psi in a month where the Goodyear may drop that in a week. Don't get me wrong, the Goodyear Eagles are fantastic but they aren't as good as the Nokian zLine. The most mileage I got from a tire on my Saab was around 11,000km until I got the Nokian tires. In the dry they are very good, great feel and they wear better than anything else I've had, they wear perfectly to be honest. I live in Ireland and the roads here are probably the worst in Europe I reckon, the motorways are good but noisy but they drain water here better than any other European motorway. Some reading this might say I'm over stretching this review but seriously, the Nokian zLine is THE BEST tire I have ever used.
September 29, 2018
Given 77% while driving a Ford Mondeo Titanium 2.0 TCDI (225/40 R18 W) on mostly country roads for 1,500 average miles
I use the 225/40/18 on a remaped Ford Mondeo 2.0 tdci with 8.5j rims. Comparing them to my 'ex' tires (Falken Ziex 914 EcoRun 205/50/17 on 7.5j rims ) I can say the following after 3.000 km:
- 1 mm is gone already, I don't do street racing . I hope that the wear does not continue at this rate.
- the sidewall is not that good, when coming out of a corner I feel that the car is being thrown out (I did not have this feeling with the Falkens)
- they are a bit noisy
- the dry grip is pretty good, wet grip also good .

For the money (approx. 100 Euros) I would recommend them .


August 15, 2018
Given 69% while driving a Mercedes Benz A180 CDI W176 (225/45 R17) on a combination of roads for 9,000 spirited miles
Nokian Zline does everything the way it should. Water, grip, fuel and handling is really good. But when it comes to comfort it´s not really good. Halfway through the tire and you can feel driving over a penny. To bad cause else it perform really well. High speed driving and braking at high speed, is not so good as Dunlop Sport Max rt2.
Recommend.
August 6, 2018
Given 67% while driving a Audi A7 3.0 TFSI (225/40 R19 W) on mostly town for 1,500 easy going miles
Those tires are so weird . There are sign of disintegration on all 4 tires . There are pieces of them that literally fall apart . Beside of that they behave great , but i am really concerned
July 23, 2018
Given 71% while driving a Audi Audi A6 (255/35 R19 W) on a combination of roads for 10,000 spirited miles
Bought a set of Nokian Zline and initial thought was that they were very good tires. There is really nothing bad about the handling. But the upper sidewall started to crack after one summer. Had them changed for another set and they also started to crack after a summer. I've gone through 3 set of Nokian Z-Line tires in three summers and every set started to crack. I'm not really confident driving the car 180-200 km/h in Germany with micro cracks on the sidewall.
June 14, 2018
Given 56% while driving a Hyundai Santa Fe (225/45 R17) on a combination of roads for 11,000 average miles
I used these Z-line tires in my 2007 Santa Fe. Handling and grip were fine, wear was terrible though, worse than any tire I have had before. After 18000km (just over 11000 miles) I had to replace them! Never a Nokian Z-line again for me!
February 19, 2018
Given 87% while driving a Fiat Abarth Punto Evo (215/45 R17 W) on mostly country roads for 18,000 spirited miles
Excellent price for the quality
Good feeling at the limit even when worn out
I'm going to buy a new set for my car
December 28, 2017
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