Michelin e.Primacy is a summer tyre made in total of 107 sizes, ranging from R15 to R15 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 235/60 R19 is 70mm wider than the narrowest dimension (165) and -10mm narrower than the widest one (225). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (235mm), which results in 141mm sidewall height. In 235/60 R19, there is only one possible speed index for Michelin e.Primacy - "V", which is good for speeds up to 240 km/h.