Michelin Primacy A/S 285/40 R23

Michelin Primacy A/S is a allround tyre made in total of 10 sizes, ranging from R20 to R20 - this particular dimension is R23, which means it fits to a 23 inch/584.2mm diameter wheel. 285/40 R23 is 30mm wider than the narrowest dimension (255) and 0mm narrower than the widest one (285). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (285mm), which results in 114mm sidewall height.