Hankook H750 Kinergy 4S2 is a allround tyre made in total of 42 sizes, ranging from R14 to R14 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 215/50 R17 is 50mm wider than the narrowest dimension (165) and 40mm narrower than the widest one (255). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (215mm), which results in 107.5mm sidewall height. In 215/50 R17, there is only one possible speed index for Hankook H750 Kinergy 4S2 - "W", which is good for speeds up to 270 km/h. In 215/50 R17, H750 Kinergy 4S2 usually competes against Aspire XP, which is a tyre from Apollo with a rating of 0%, compared to 0% of the Hankook in question.