General Altimax Sport 275/35 R18

General Altimax Sport is a summer tyre made in total of 21 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 275/35 R18 is 80mm wider than the narrowest dimension (195) and -30mm narrower than the widest one (245). 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.