Michelin Alpin 5 is a winter tyre made in total of 87 sizes, ranging from R15 to R15 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 205/50 R17 is 20mm wider than the narrowest dimension (185) and 110mm narrower than the widest one (315). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (205mm), which results in 102.5mm sidewall height. In 205/50 R17, there are 2 possible speed indexes for Michelin Alpin 5 - "V","H", which are good for speeds up to 240, 210 km/h. In 205/50 R17, Alpin 5 usually competes against Blizzak LM-005, which is a tyre from Bridgestone with a rating of 87%, compared to 0% of the Michelin in question.
