Goodyear UltraGrip 245/65 R17

Goodyear UltraGrip is a winter tyre made in total of 12 sizes, ranging from R13 to R13 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 245/65 R17 is 10mm wider than the narrowest dimension (235) and 10mm narrower than the widest one (255). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (245mm), which results in 159.25mm sidewall height.