Hankook Ventus S1 evo3 SUV K127A is a summer tyre made in total of 86 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 325/35 R20 is 90mm wider than the narrowest dimension (235) and -30mm narrower than the widest one (295). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (325mm), which results in 113.75mm sidewall height. In 325/35 R20, there is only one possible speed index for Hankook Ventus S1 evo3 SUV K127A - "Y", which is good for speeds up to 300 km/h.