Nokian Rockproof 235/80 R17

Nokian Rockproof is a summer tyre made in total of 7 sizes, ranging from R16 to R16 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 235/80 R17 is 10mm wider than the narrowest dimension (225) and 50mm narrower than the widest one (285). This tyre profile of 80 means the sidewall height of the tyre is 80% of the tyre width (235mm), which results in 188mm sidewall height.