Sava Eskimo HP2 is a winter tyre made in total of 25 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/45 R18 is 40mm wider than the narrowest dimension (195) and 10mm narrower than the widest one (245). 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. In 235/45 R18, there is only one possible speed index for Sava Eskimo HP2 - "V", which is good for speeds up to 240 km/h. In 235/45 R18, Eskimo HP2 usually competes against Speed-Grip 5, which is a tyre from Semperit with a rating of 67%, compared to 67% of the Sava in question.