Goodyear Vector All Season 4 275/30 R20

Goodyear Vector All Season 4 is a allround tyre made in total of 91 sizes, ranging from R16 to R16 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 275/30 R20 is 70mm wider than the narrowest dimension (205) and 10mm narrower than the widest one (285). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (275mm), which results in 82.5mm sidewall height.