Hankook Ventus S1 evo K107 305/25 R20

Hankook Ventus S1 evo K107 is a summer tyre made in total of 25 sizes, ranging from R15 to R15 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 305/25 R20 is 110mm wider than the narrowest dimension (195) and -40mm narrower than the widest one (265). This tyre profile of 25 means the sidewall height of the tyre is 25% of the tyre width (305mm), which results in 76.25mm sidewall height.