Nokian Snowproof 2 is a winter tyre made in total of 18 sizes, ranging from R15 to R15 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 195/65 R15 is 10mm wider than the narrowest dimension (185) and 20mm narrower than the widest one (215). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (195mm), which results in 126.75mm sidewall height. In 195/65 R15, there is only one possible speed index for Nokian Snowproof 2 - "T", which is good for speeds up to 190 km/h. In 195/65 R15, Snowproof 2 usually competes against Wintercraft Wp52, which is a tyre from Kumho with a rating of 55%, compared to 71% of the Nokian in question.