Yokohama Advan Sport V105 325/25 R21

Yokohama Advan Sport V105 is a summer tyre made in total of 137 sizes, ranging from R16 to R16 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 325/25 R21 is 130mm wider than the narrowest dimension (195) and -10mm narrower than the widest one (315). This tyre profile of 25 means the sidewall height of the tyre is 25% of the tyre width (325mm), which results in 81.25mm sidewall height.