Tomason Sportrace 235/45 R20

Tomason Sportrace is a summer tyre made in total of 133 sizes, ranging from R15 to R15 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 235/45 R20 is 40mm wider than the narrowest dimension (195) and 40mm narrower than the widest one (275). 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.