Radar Dimax R8+ is a summer tyre made in total of 147 sizes, ranging from R13 to R13 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/40 R18 is 20mm wider than the narrowest dimension (215) and 60mm narrower than the widest one (295). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (235mm), which results in 94mm sidewall height. In
235/40 R18, Dimax R8+ usually competes against
Sport Master, which is a tyre from
Linglong with a rating of 77%, compared to 36% of the
Radar in question.