Goodyear Efficientgrip 255/65 R17

Goodyear Efficientgrip is a summer tyre made in total of 109 sizes, ranging from R14 to R14 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 255/65 R17 is 70mm wider than the narrowest dimension (185) and 30mm narrower than the widest one (285). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (255mm), which results in 165.75mm sidewall height.