Kumho IZen KW23 vs Infinity INF 049
In the 2 independent tests that ran both tires, the Kumho IZen KW23 finished ahead 2 times and the INF 049 not once.
Performance profile
Their shared tests recorded too few of the same measurements to chart, so the chart shows what owners rate each tire on every question.
Where owners rate each higher
IZen KW23
INF 049
Not ahead in any category
Point at or tap any spoke for both tires' figures.
Owners rate the IZen KW23 84% from 10 reviews and the INF 049 61% from 12. Each spoke is one question owners answer out of 10; reviews are vetted by hand before publication.
Head to head in 2 tests, 2012 to 2013
Each row is one published test in which both tires ran on the same car, in the same size, on the same day. The line is the whole field, winner on the left.
| Test | IZen KW23 | Field | INF 049 |
|---|---|---|---|
| 2013 Winter Tire Overview - Braking | P33 of 50 | P45 of 50 | |
| 2012 Auto Bild 42 Winter Tire Braking Test | P27 of 43 | P36 of 43 |
IZen KW23 vs INF 049: your questions
Is the Kumho IZen KW23 or the Infinity INF 049 the better tire?
In the 2 independent tests that ran both tires, the Kumho IZen KW23 finished ahead 2 times and the INF 049 not once. On the Tire Reviews Score, which weighs every test and review we hold, the IZen KW23 scores 7.6 and the INF 049 5.9 out of 10.
Which is quieter and more comfortable?
Owners rate comfort 8.5/10 for the IZen KW23 and 5.9/10 for the INF 049.
What do owners say?
Owners rate the IZen KW23 84% from 10 reviews and the INF 049 61% from 12. 90% of IZen KW23 owners would buy it again, against 42% for the INF 049.
Are they available in the same sizes?
The IZen KW23 is made in 2 sizes (13 to 15 inch) and the INF 049 in 30 (13 to 17 inch). 0 sizes are available in both. On the EU label the IZen KW23 is graded D for wet grip and D for rolling resistance in most sizes; the INF 049 C and D.
More comparisons with these tires
Run either of these?
Your review is the part of this page no test can supply: how the tire wore, how it aged, what it was like in the rain in year three. It takes about five minutes.
Where this data comes from
Finishing positions and measurements are transcribed from each published test. A test only counts here when both tires ran in it, so every figure was recorded on the same car, size and day as the one it is compared to.
About the TR Score
The Tire Reviews Score rates each tire out of 10 from every independent test result and vetted owner review we hold, so two tires can be compared even before a test has run them together.
Who does the testing
Every test published as a Tire Reviews test is run by Jonathan Benson, who has been testing tires independently since 2007.