Hankook Ventus S1 evo2 SUV K117C is a summer tyre made in total of 3 sizes, ranging from R18 to R18 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 275/40 R20 is 50mm wider than the narrowest dimension (225) and 40mm narrower than the widest one (315). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (275mm), which results in 110mm sidewall height. In 275/40 R20, there is only one possible speed index for Hankook Ventus S1 evo2 SUV K117C - "W", which is good for speeds up to 270 km/h. In 275/40 R20, Ventus S1 evo2 SUV K117C usually competes against Winter Sport 5 SUV, which is a tyre from Dunlop with a rating of 0%, compared to 0% of the Hankook in question.