Bridgestone Potenza Sport Evo 255/40 R18

Bridgestone Potenza Sport Evo is a summer tyre made in total of 105 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 255/40 R18 is 50mm wider than the narrowest dimension (205) and 70mm narrower than the widest one (325). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (255mm), which results in 102mm sidewall height. In 255/40 R18, Potenza Sport Evo usually competes against Eagle F1 Asymmetric 6, which is a tyre from Goodyear with a rating of 93%, compared to 93% of the Bridgestone in question.