Kormoran All Season is a allround tyre made in total of 48 sizes, ranging from R13 to R13 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 215/55 R17 is 70mm wider than the narrowest dimension (145) and 30mm narrower than the widest one (245). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (215mm), which results in 118.25mm sidewall height. In 215/55 R17, there are 2 possible speed indexes for Kormoran All Season - "V","W", which are good for speeds up to 240, 270 km/h. In 215/55 R17, 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.