Continental ContiSportContact 5 305/40 R20

Continental ContiSportContact 5 is a summer tyre made in total of 236 sizes, ranging from R13 to R13 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 305/40 R20 is 110mm wider than the narrowest dimension (195) and -10mm narrower than the widest one (295). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (305mm), which results in 122mm sidewall height.