Dimensions 185/55/15, on Grant Liftback, were factory-specified. Everything was good until it pierced the sidewall of a tram rail in St. Petersburg. And I discovered that you cannot purchase this tire. Or they say they don't sell tires or they lower the price of 7-8 Tyres each tire. They don't really want to send one tire from other places either. The automobile will fly off the suspension warranty if a different dimension is installed. Only found with significant effort and on a 3-day order. A whole week was spent driving on the spare tire, along with numerous phone calls and online store views. And this is just for St. Petersburg; for the rest of the country, I have no idea what to do.