Kormoran All Season is a allround tyre made in total of 48 sizes, ranging from R13 to R13 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 195/50 R15 is 50mm wider than the narrowest dimension (145) and 50mm narrower than the widest one (245). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (195mm), which results in 97.5mm sidewall height. In 195/50 R15, there is only one possible speed index for Kormoran All Season - "V", which is good for speeds up to 240 km/h. In 195/50 R15, All Season usually competes against G-Grip All Season 2, which is a tyre from BFGoodrich with a rating of 19%, compared to 20% of the Kormoran in question.