Hankook K127 Ventus S1 Evo3 is a summer tyre made in total of 31 sizes, ranging from R17 to R17 - this particular dimension is R22, which means it fits to a 22 inch/558.8mm diameter wheel. 285/30 R22 is 80mm wider than the narrowest dimension (205) and 50mm narrower than the widest one (335). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (285mm), which results in 85.5mm sidewall height. In 285/30 R22, there is only one possible speed index for Hankook K127 Ventus S1 Evo3 - "Y", which is good for speeds up to 300 km/h.