185/55 R15 tyres are produced with family cars and delivery vehicles in mind. The size of the tyre can be seen on its sidewall where it is provided in a form of a string of signs. The first number informs about the tread width of the tyre. Millimetres are the unit used to describe this number. In the case of the 185/55 R15 tyre it is 185 mm. The second number equals the tyre profile's height and its percentage ratio to its tread width (55% out of 185 mm). The "R" in the tyre's size denotes its radial construction. The last number denotes the diameter of the wheel rim (provided in inches) on which the tyres should be installed. See the 185/55 R15 tyre model in our offer.