Michelin Pilot Super Sport is a summer tyre made in total of 161 sizes, ranging from R17 to R17 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 265/30 R21 is 60mm wider than the narrowest dimension (205) and 50mm narrower than the widest one (315). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (265mm), which results in 79.5mm sidewall height. In
265/30 R21, Pilot Super Sport usually competes against
SportContact 6, which is a tyre from
Continental with a rating of 0%, compared to 0% of the
Michelin in question.