Dunlop SP Winter Sport 4D 225/55 R16

Dunlop SP Winter Sport 4D is a winter tyre made in total of 66 sizes, ranging from R13 to R13 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 225/55 R16 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.