Debica Frigo HP2 is a winter tyre made in total of 26 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 245/45 R18 is 50mm wider than the narrowest dimension (195) and 0mm narrower than the widest one (245). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (245mm), which results in 110.25mm sidewall height. In 245/45 R18, there is only one possible speed index for Debica Frigo HP2 - "V", which is good for speeds up to 240 km/h. In 245/45 R18, Frigo HP2 usually competes against Kristall Control HP2, which is a tyre from Fulda with a rating of 56%, compared to 50% of the Debica in question.