Goodyear Eagle F1 Supersport is a summer tyre made in total of 154 sizes, ranging from R13 to R13 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 265/30 R20 is 60mm wider than the narrowest dimension (205) and 10mm narrower than the widest one (275). 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 R20, Eagle F1 Supersport usually competes against
Ventus S1 evo3 K127, which is a tyre from
Hankook with a rating of 81%, compared to 81% of the
Goodyear in question.