Goodyear Eagle UltraGrip GW-3 245/50 R17

Goodyear Eagle UltraGrip GW-3 is a winter tyre made in total of 9 sizes, ranging from R15 to R15 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 245/50 R17 is 50mm wider than the narrowest dimension (195) and 0mm narrower than the widest one (245). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (245mm), which results in 122.5mm sidewall height.