Gt Radial Fe2 is a tyre made in total of 38 sizes, ranging from R14 to R14 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 275/35 R20 is 110mm wider than the narrowest dimension (165) and -50mm narrower than the widest one (225). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (275mm), which results in 96.25mm sidewall height. In 275/35 R20, Radial Fe2 usually competes against , which is a tyre from with a rating of %, compared to 0% of the Gt in question.