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315/30 R20 Michelin Pilot Sport 4 S variants
Michelin Pilot Sport 4 S is a summer tyre made in total of 178 sizes, ranging from R18 to R18 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 315/30 R20 is 100mm wider than the narrowest dimension (215) and 0mm narrower than the widest one (315). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (315mm), which results in 94.5mm sidewall height. In 315/30 R20, there is only one possible speed index for Michelin Pilot Sport 4 S - "Y", which is good for speeds up to 300 km/h.
Michelin Pilot Sport 4 S is made in 178 sizes, starting from 215/35 R18 up to 315/30 R23.