Pirelli Scorpion Winter 2 is a winter tyre made in total of 53 sizes, ranging from R18 to R18 - this particular dimension is R22, which means it fits to a 22 inch/558.8mm diameter wheel. 285/40 R22 is 60mm wider than the narrowest dimension (225) and 40mm narrower than the widest one (325). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (285mm), which results in 114mm sidewall height. In 285/40 R22, there is only one possible speed index for Pirelli Scorpion Winter 2 - "V", which is good for speeds up to 240 km/h. In 285/40 R22, Scorpion Winter 2 usually competes against Blizzak LM-005, which is a tyre from Bridgestone with a rating of 88%, compared to 83% of the Pirelli in question.