Michelin Pilot Sport 4 S is a summer tyre made in total of 178 sizes, ranging from R18 to R18 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (215mm), which results in 129mm sidewall height. In 215/60 R17, Pilot Sport 4 S usually competes against P ZERO PZ4, which is a tyre from Pirelli with a rating of 85%, compared to 86% of the Michelin in question.