Michelin CrossClimate 2 is a allround tyre made in total of 145 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 265/35 R18 is 90mm wider than the narrowest dimension (175) and -10mm narrower than the widest one (255). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (265mm), which results in 92.75mm sidewall height. In 265/35 R18, there is only one possible speed index for Michelin CrossClimate 2 - "Y", which is good for speeds up to 300 km/h.