Radar Dimax R8+ 315/35 R20

Radar Dimax R8+ is a summer tyre made in total of 147 sizes, ranging from R13 to R13 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 315/35 R20 is 100mm wider than the narrowest dimension (215) and -20mm narrower than the widest one (295). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (315mm), which results in 110.25mm sidewall height.