225/55 R18 Dunlop SP Winter Sport 4D variants
Dunlop SP Winter Sport 4D is a winter tyre made in total of 43 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/55 R18 is 30mm wider than the narrowest dimension (195) and 60mm narrower than the widest one (285). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (225mm), which results in 123.75mm sidewall height. In 225/55 R18, there is only one possible speed index for Dunlop SP Winter Sport 4D - "H", which is good for speeds up to 210 km/h.
Dunlop SP Winter Sport 4D is made in 43 sizes, starting from 195/65 R15 up to 285/30 R21.
