Pirelli Scorpion Winter is a winter tyre made in total of 212 sizes, ranging from R16 to R16 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 225/55 R19 is 10mm wider than the narrowest dimension (215) and 100mm narrower than the widest one (325). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (225mm), which results in 123.75mm sidewall height. In 225/55 R19, there is only one possible speed index for Pirelli Scorpion Winter - "H", which is good for speeds up to 210 km/h. In 225/55 R19, Scorpion Winter usually competes against Winter i*cept evo3 X W330A, which is a tyre from Hankook with a rating of 72%, compared to 0% of the Pirelli in question.