Yokohama Advan V61 235/50 R21

Yokohama Advan V61 is a summer tyre made in total of 21 sizes, ranging from R17 to R17 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 235/50 R21 is 10mm wider than the narrowest dimension (225) and 0mm narrower than the widest one (235). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (235mm), which results in 117.5mm sidewall height.