Bridgestone Dueler H/P Sport 235/45 R20

Bridgestone Dueler H/P Sport is a summer tyre made in total of 153 sizes, ranging from R13 to R13 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 235/45 R20 is 30mm wider than the narrowest dimension (205) and 80mm narrower than the widest one (315). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (235mm), which results in 105.75mm sidewall height.