In this comparison, we are comparing a tyre from a manufacturer from Poland (Kormoran) against a tyre from a manufacturer from Japan (Yokohama). Kormoran is a brand that belongs to the Michelin group. Generally, Yokohama allround tyres are slightly better rated (35%) than Kormoran (15%). In this particular case, the Yokohama BluEarth-4S AW21 has a better rating of 31% compared to 15% of the Kormoran All Season. The first tyre test of Kormoran All Season was done in 2020, compared to 2019 when was the Yokohama BluEarth-4S AW21 first tested. Important for this comparison is also the Autobild 2023 225/45 R17 test, where both the All Season and the BluEarth-4S AW21 were tested. See more mutual tests below. When it comes to comparison, eu labels can be also interesting - 100% of Kormoran All Season has C wet grip rating, whereas 86% of Yokohama BluEarth-4S AW21 has B rating.