I know it’s a serious matter to mention the term all-year-round tyres in a forum full of experts. That’s why I’m just asking if tests are known, I’d like to read something. So in general, you know, there are good and bad tyres, as well as expensive and cheap ones. So I get it, with all-weather tyres there is also a “interpretation” What I mean: summer tyres are designed for summer, winter tyres for winter. All-year-round tyres, on the other hand, ko Some even tend towards winter or some direction towards summer. Some even towards open/offroad. It would be unwise to get the wrong maturity for your own application, so I’m looking for tests. What I’m looking for is: W speed index (up to 270), runflat, 225/50/R18 According to my previous knowledge, there is no such maturity. So I’m going to have to take a “slower” up to 240km/h and do without it. (but that’s another topic) “interpretation” direction winter, I will only drive it in winter, but hope to get a better tuning for the transition time than for a pure winter tire. That’s the thought behind it. I know in the april it snows and has +25C. I want to mature for that. (as long as I don’t trust in SR) willy