Continental SportContact 7 305/25 R20

Continental SportContact 7 is a summer tyre made in total of 124 sizes, ranging from R18 to R18 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 305/25 R20 is 80mm wider than the narrowest dimension (225) and 40mm narrower than the widest one (345). This tyre profile of 25 means the sidewall height of the tyre is 25% of the tyre width (305mm), which results in 76.25mm sidewall height.