I am writing specifically on 185 / 65R15 on Solaris and in comparison with the winter Camho. The rubber is very hard. Hence we have increased noise: it buzzes very decently. The second problem stems from rutting: the car feels the profile. And this is a 185 tire. It can hold well, but it’s bad on Solaris, it shakes the car. Didn't see anything good in the rain. In general, only the negative in this size remained from the rubber. Tires were new, installed on Solaris. Some cracks appeared on the sidewalls after small holes. The car drives to the side. Swapping tires changed the situation - pulling in the other direction. Even Chinese tires Makstrek behaved better. And Roadstone was 1000 times better.