Kumho Ecsta PS71 is a summer tyre made in total of 216 sizes, ranging from R13 to R13 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 215/45 R18 is 20mm wider than the narrowest dimension (195) and 100mm narrower than the widest one (315). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (215mm), which results in 96.75mm sidewall height. In
215/45 R18, Ecsta PS71 usually competes against
RainSport 5, which is a tyre from
Uniroyal with a rating of 69%, compared to 86% of the
Kumho in question.