Goodyear Ultragrip Performance+ Suv 235/40 R20

Goodyear Ultragrip Performance+ Suv is a winter tyre made in total of 63 sizes, ranging from R16 to R16 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 235/40 R20 is 20mm wider than the narrowest dimension (215) and 40mm narrower than the widest one (275). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (235mm), which results in 94mm sidewall height.