Yokohama BLUEARTH-GT AE51 is a summer tyre made in total of 67 sizes, ranging from R14 to R14 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 195/55 R16 is 40mm wider than the narrowest dimension (155) and 80mm narrower than the widest one (275). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (195mm), which results in 107.25mm sidewall height. In 195/55 R16, BLUEARTH-GT AE51 usually competes against ZEON CS8, which is a tyre from Cooper with a rating of 33%, compared to 0% of the Yokohama in question.