Riken All Season 225/55 R17

Riken All Season is a tyre made in total of 65 sizes, ranging from R13 to R13 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 225/55 R17 is 80mm wider than the narrowest dimension (145) and -20mm narrower than the widest one (205). 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.