Nokian WeatherProof is a allround tyre made in total of 49 sizes, ranging from R13 to R13 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 225/55 R17 is 70mm wider than the narrowest dimension (155) and 30mm narrower than the widest one (255). 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 R17, there is only one possible speed index for Nokian WeatherProof - "V", which is good for speeds up to 240 km/h. In 225/55 R17, WeatherProof usually competes against EuroALL Season AS210, which is a tyre from Falken with a rating of 61%, compared to 0% of the Nokian in question.