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Kumho IZen KW27

The Kumho IZen KW27 is a High Performance Winter tire designed to be fitted to Passenger Cars.

The quick answer

Owners say 73% from 32 owner reviews 70% would buy again Read the reviews
Tests say 10th average finish across 3 independent tests Latest: P13 of 16 · 2014 See every test

Built from every independent test result and vetted owner review we hold for this tire - the evidence is all further down the page. Data updated February 2025.

  • 32owner reviews
  • 291,033miles driven
  • 3professional tests
  • 12sizes available

Tire Reviews Score

Kumho IZen KW27

6.8/10

From owner reviews only: no measured test results yet.

  • Limited Confidence
  • 32 owner reviews

How this score is built

Source Better than Weight
Independent testsNo measured test results yet – 0%
Owner reviews32 owner reviews · rated 73% 41% 68%
Typical tireWhere every score starts before its own data counts – 32%
Combined 43% 6.8

A fixed curve turns the combined figure into the 0 to 10 score, so roughly the top 10% of a group score 9 or more.

Confidence

  1. Limited
  2. Medium
  3. High

Owner reviews decide 68% of this score. The other 32% is the typical starting point, and it shrinks as more reviews arrive.

Scored on owner reviews alone, a tire is High once the reviews decide 90% or more, and Medium from 70%. Anything less is Limited: expect the number to move as reviews arrive.

The tests behind it

Only measured results count. A test that published its placings alone is listed, but not scored.

  1. 2014 2014 Auto Bild Winter Tire Test Auto Bild · 225/50 R17 P13 / 16 Placing only
  2. 2014 2014 50 Winter Tire Braking Overview Auto Bild · 225/50 R17 P11 / 49 Placing only
  3. 2009 2009 Sport Auto Performance Winter Tire Test Sport Auto · 225/45 r17 P7 / 8 Placing only

Tested 3 times by independent publications, the Kumho IZen KW27 averages a finish of 10th.

3 Tests
0 Test Wins
10th Average
7th Best
13th Worst
Finishing position in each test1stLast20092014

Finishing position in each test

Every independent test of the Kumho IZen KW27, newest first
YearTestResultAward
20142014 Auto Bild Winter Tire TestAuto Bild · 225/50 R17P13 / 16
20142014 50 Winter Tire Braking OverviewAuto Bild · 225/50 R17P11 / 49
20092009 Sport Auto Performance Winter Tire TestSport Auto · 225/45 r17P7 / 8

On the full record: Record by disciplineHead-to-head recordEvery published verdict

Dimensions & Label Scores
View All

Size Range12 sizes available

205-275Width35-65Profile16-19Rim89-105 V-WLoad/Speed Index2009First On Market

EU LabelAcross 12 sizes - the grade depends on the size you buy.

Noise

71-72dB B

3PMSF on every size

Frequently Asked Questions
What is the Kumho IZen KW27's EU tire label rating?
Across its range, the Kumho IZen KW27 most commonly carries EU label ratings of C for fuel efficiency, D for wet grip and 72 dB for noise.
How comfortable and quiet are the Kumho IZen KW27?
Owners rate the Kumho IZen KW27 8.3 out of 10 for comfort and noise across 29 reviews.
How well do the Kumho IZen KW27 wear, according to owners?
Owners rate the Kumho IZen KW27 7.8 out of 10 for wear across 29 reviews. 12 of those reviews come from owners past 10,000 miles, and the typical review covers 6,250 miles.
Would owners buy the Kumho IZen KW27 again?
70% of owners say they would buy the Kumho IZen KW27 again, based on the 30 owner reviews that answered the question. 43% of them gave it the highest possible answer.
What do owners say about the Kumho IZen KW27's snow traction?
Of the 28 owner reviews analyzed for the Kumho IZen KW27, 18 mention snow traction: 18 praise it (strong snow traction) and 0 criticise it (weak snow traction). One owner wrote: "Originally bought to travel on skiing holidays, where they excel in the snow and ice". Read those reviews
More questions about the Kumho IZen KW27 (3)
What do owners say about the Kumho IZen KW27's tread life?
Of the 28 owner reviews analyzed for the Kumho IZen KW27, 13 mention tread life: 11 praise it (long-lasting) and 2 criticise it (wears quickly). One owner wrote: "They have now completed 30,000 miles". Read those reviews
What do owners say about the Kumho IZen KW27's wet grip?
Of the 28 owner reviews analyzed for the Kumho IZen KW27, 12 mention wet grip: 6 praise it (confident wet grip) and 6 criticise it (weak wet grip). One owner wrote: "The wet grip is second to none". Read those reviews
What sizes does the Kumho IZen KW27 come in?
The Kumho IZen KW27 is available in 12 sizes, ranging from 205-275/35-65 R16-19.
Owner Questions
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Questions and Answers for the Kumho IZen KW27

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Kumho IZen KW27 Owner Reviews

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What owners say

Across 32 owner ratings the Kumho IZen KW27 averages 73%. Owners rate Comfort highest at 8.3 out of 10 and Ice Grip lowest at 5. 12 of those reviews come from owners past 10,000 miles. 72% of owners score it 70% or better.

Owner ratings averaged from 32 ratings

  • Owner score 73%
  • Comfort 83%
  • Wear 78%
  • Dry Grip 76%
  • Wet Grip 75%
  • Snow Grip 75%
  • Road Feedback 73%
  • Handling 69%
  • Ice Grip 50%

Featured reviews

Most helpful 88%

“These are tires that just keep giving! I bought this set of Kumho IZen KW27 winter tires in 2015 after having a particularly bad time in the Alps the previous year driving a Volvo V70 R Design on summer tires and having...”

  • Volvo v70 RDESIGN 2.0 d
  • 30 miles
Read full review → 965 found this helpful
Most critical 29%

“Have run the KW27 tires on my car (310+hp on front-wheels). First impressions when switching from my summer tires (Eagle F1 Assymettric 2, 255/35/18): - Terrible, terrible grip in the wet. It gets scary that front...”

  • Renault Megane RS250
  • 10,000 miles
Read full review → 594 found this helpful
Longest term 100%

“Best winter tire on to date. Perfect for 350+ bhp cars. Faultless winter traction on ice and snow and pretty impressive in normal driving conditions all the way up to 175mph. Fuel efficiency is impressive and they have...”

  • Maserati Granturismo
  • 55,000 miles
Read full review → 609 found this helpful

All 29 Kumho IZen KW27 reviews

Score spread across 29 written reviews
88%
Member
These are tires that just keep giving! I bought this set of Kumho IZen KW27 winter tires in 2015 after having a particularly bad time in the Alps the previous year driving a Volvo V70 R Design on summer tires and having to use snow chains while the locals were using winter tires without any issues. They have now completed 30,000 miles, I am driving a different Volvo and the skiing trips have come to an end, but there is still life in these Kumho winter tires, I'm sure I will get another winter out of them after this winter, I live in the north of England, the winter tires go on sometime in November and are usually removed by the end of March which mean they are rarely in used in temperatures above 7c, this could be a reason why they have lasted so long.
Originally bought to travel on skiing holidays, where they excel in the snow and ice, I have found that they perform equally well in the cold, wet climate of England, the tread disperses water efficiently providing excellent grip.
This owner's scores
  • Dry Grip 9
  • Wet Grip 9
  • Road Feedback 8
  • Handling 9
  • Wear 10
  • Comfort 7
  • Buy again 10
  • Snow Grip 9
  • Ice Grip 8
Helpful 965
58%
Member
  • Lexus
  • 225/45 R17
  • 3 miles
  • Mostly Motorways
  • Easy Going
Sole reason for this post; bought 4 of these for trip annually to Alps from U.K. After only 4 trips -3,000miles; One of them has "bubbles" (-4 of) on inside sidewall of tire; beware of missing this if being inspected.
It could be a "one off"; hope so as I need to replace as a single tire.
This owner's scores
  • Dry Grip 8
  • Wet Grip 8
  • Wear 1
  • Buy again 4
Helpful 838
30%
Member
The previous owner fit this tire to the car the winter before I bought it. So they were pretty new when I started with them. The tire itself is quiet compared to the SportContact 6s I have for the summer. But after fitting them back on the car the road feedback is very lacking and the wet grip is so bad it made an Audi with Quattro spin it’s wheels! The most shocking thing is the balance of the car and the braking distance. Driving on motorways it’s floating around all over the place and the braking distance feels dangerously long. All in all then, the noise level is the only good thing I have to say about the tire.
This owner's scores
  • Dry Grip 3
  • Wet Grip 3
  • Road Feedback 2
  • Handling 2
  • Wear 3
  • Comfort 5
  • Buy again 1
  • Snow Grip 6
  • Ice Grip 2
Helpful 857

Which tires do you drive?

Researching the Kumho IZen KW27? Rate the tires you actually drive - and help the next buyer choose.

Own the Kumho IZen KW27?
86%
Member
Overall an excellent tire - especially good on winter roads - these are winter tires after all! I've driven in the UK and across the continent to Germany and back in deepest winter. I've driven in the high hills north of Frankfurt with steep snow covered roads and tracks and found the adhesion excellent. No comparison with my usual Michelin summer tires which would be comparitely useless in these conditions. Normal driving/roadholding is good with a little less steering response than my Michelins - they feel a little softer when changing direction but nothing untoward. In the wet they are not as good as my Michelins but then I did buy them for snow/ice/winter use - especially for the Continent and Germany. They wear well for a softer compound and I wouldn't hesitate to recommend them.
This owner's scores
  • Dry Grip 9
  • Wet Grip 8
  • Road Feedback 8
  • Handling 8
  • Wear 9
  • Comfort 8
  • Buy again 10
Helpful 608
79%
Holigan
I have drived for 1000 miles under the heavy winter conditions(snow-ice etc.) The tires suprised me with their performance. With this price, kw27 is the best option for the big wheel cars. highly recommended.
This owner's scores
  • Dry Grip 9
  • Wet Grip 9
  • Road Feedback 8
  • Handling 8
  • Wear 7
  • Comfort 5
  • Buy again 9
Helpful 589
84%
Member
  • Honda CRV
  • 225/45 R17
  • 30,000 miles
  • A Combination of Roads
  • Average
I had these on all 4 wheels on a Honda CRV 2.2 4x4. I used them to replace two sets of contis that only lasted about 9k each. Had these on all year round for 3 years done nearly 30k and they were still going strong when I traded the car - therefore wear was excellent. Driving was good in wet and dry, saved me in the snow on several occasions allowing me to pass stranded proper 4x4'S. I was so impressed that I then put them on my next car an AUDI A4 all road again they performed well but I only had the car for 12 months before twins forced the sale for another new version CRV which when the current yokohamas give up the ghost - which I am guessing wont be long then I will go back to the Kumho's.
This owner's scores
  • Dry Grip 9
  • Wet Grip 9
  • Road Feedback 7
  • Handling 7
  • Wear 10
  • Comfort 8
  • Buy again 9
Helpful 641
60%
Member
This winter I have had these on all 4 wheels my Citroen DS4 and I'm surprised I've not had a major crash yet. If I hit water on the motorway between 70-80 mph the aqua plane and loss of control and feel is so frightening,tonight once again I lost the back end! at first I thought it must be me but it has happened so many times now that I'm going to remove them before I crash. Last year I had them only in the front and it did not seem to be so bad but this year it's a bargain I just can't afford to keep, a real shame as in the dry and at speed they behave quite well and a great price for a car like mine with oversized wheels.
This owner's scores
  • Dry Grip 7
  • Wet Grip 6
  • Road Feedback 6
  • Handling 6
  • Wear 8
  • Comfort 8
  • Buy again 1
Helpful 574
100%
Jacen Dex Expert
Best winter tire on to date. Perfect for 350+ bhp cars. Faultless winter traction on ice and snow and pretty impressive in normal driving conditions all the way up to 175mph.
Fuel efficiency is impressive and they have worn very well. Braking when wet and cold is also impressive.
perfect for the safe drivers and true petrol heads alike
This owner's scores
  • Dry Grip 10
  • Wet Grip 10
  • Road Feedback 10
  • Handling 10
  • Wear 10
  • Comfort 10
  • Buy again 10
Helpful 609
47%
Member
I have bought two sets of these tires over four winters which were fitted to a Mk4 Mondeo 2.0 tdci estate. I am now using another brand.

My impressions of the KU27 was that initially you had to be very careful with them for the first 300 miles or so until they had bedded in.

Comlared to the KU37 summer tires that came off, 27's were not so good in the wet and would break away dramatically on a wet and greasy roundabout for instance. As the tires wore, this problem escalated and I had to take them off and renew by the time they were half worn.

In the dry the tires performed quite well and I never pushed them to the limit. But the Mondeo is a fine handling car which in itself would compliment any tire.

In snow the tires saved me from getting stuck on at least four occasions and without them I certainly would not be able to get up my drive.

So in conclusion, you pays your money and takes your choice. With tires you certainly get what you pay for.

This owner's scores
  • Dry Grip 6
  • Wet Grip 2
  • Road Feedback 7
  • Handling 4
  • Wear 5
  • Comfort 7
  • Buy again 2
Helpful 605
63%
Member
Had Conti Winterconact 850s on before these and would highly recommend anyone to get the Contis. The Kumho make the car floaty, traction control is always kicking in and the mpgs have fallen drastically (average 43mpg with Contis down to ave 35mpg with these). I spent £200 each for these and have been running them for 8 weeks with about 2k put on them. Had them in the snow and ice and they do grip ok but I'm finding it hard to fully trust the tires and am thinking of getting rid of them already. Do yourself a favor and get Pirellis, Conti or Michelin as you're wasting your money on these. Only good thing is road noise is low...but that's it!
This owner's scores
  • Dry Grip 5
  • Wet Grip 7
  • Road Feedback 6
  • Handling 6
  • Wear 7
  • Comfort 7
Helpful 606
29%
Member
Have run the KW27 tires on my car (310+hp on front-wheels). First impressions when switching from my summer tires (Eagle F1 Assymettric 2, 255/35/18):

- Terrible, terrible grip in the wet. It gets scary that front wheels still spin at 110+ km/h in 4th gear on a wet highway!!
- Massive understeer tendency in the wet, still there in the dry
- Massive thread blocks that provide extreme little amounts of grip feedback through the steering wheel
- Extreme "floaty" car and steering behavior at higher speeds (i.e. 150km/h+). Do not even try "sport cornering" in dry. The car takes a long time to 'settle' the load through the extreme movement of the thread blocks, giving very little confidence.
- Don't even dare to take these tires up to 200+, even though they are rated at 270km/h. Summer tires have been taken up to 270km/h easily with extreme stable results. Again, due to the thread blocks and very soft compound used.
- Thread wear on front wheels is enormous when using it on high powered FWD cars. This is mainly due to lack of grip in any kind of situation, especially wet conditions. Tire wheel spin is extreme as it cannot handle any serious amounts of torque. High amount of thread-block movement during cornering does not help wear either. Rubber compound is very soft as well.

Overall, being a car enthusiast, these winter tires are the worst I have ever had. The transition from proper summer tires (Eagle F1, Pilot Sport 3) is enormous and scary. Wet performance is dreadful.

I would not recommend these tires in any way if you're not driving in extreme snow conditions. Go for tires with smaller thread blocks.
This owner's scores
  • Dry Grip 4
  • Wet Grip 1
  • Road Feedback 2
  • Handling 2
  • Wear 3
  • Comfort 7
  • Buy again 1
Helpful 594
94%
Member
I have premium Continental Sport Contacts 245/45/17 summer tires on my high performance 2013 Mercedes E Class estate most of the year.

These Kumho winter tires at just £108 each provide a better, smoother ride, equal grip in the dry, better grip in the wet and wear better. They are incredibly heavy-duty, thick tread proper snow tires. At first sight you can be a bit taken about by the "welly boot" look of them, but once on the car, and with the low profile, that isn't as noticeable.

I fit them from 1 November to 15 March and am not concerned that the temperature during this time is often higher than 7C where I am, given the lack of wear on these and the fact I'm saving my summer tires.

I highly recommend fitting them to any powerful rear wheel drive car such a mine, given the problems of traction in snow and ice involved with the car. A complete bonus is the performance they give even when conditions aren't down to the limits where they might actually save a serious loss of grip and accident that having summer tires on might cause.
This owner's scores
  • Dry Grip 10
  • Wet Grip 10
  • Road Feedback 8
  • Handling 8
  • Wear 10
  • Comfort 10
  • Buy again 10
Helpful 575
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