Michelin Latitude Cross 285/45 R21

Michelin Latitude Cross is a summer tyre made in total of 59 sizes, ranging from R15 to R15 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 285/45 R21 is 100mm wider than the narrowest dimension (185) and 0mm narrower than the widest one (285). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (285mm), which results in 128.25mm sidewall height.