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315/40 R21 Yokohama BluEarth winter V905 variants
Yokohama BluEarth winter V905 is a winter tyre made in total of 141 sizes, ranging from R15 to R15 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 315/40 R21 is 130mm wider than the narrowest dimension (185) and -20mm narrower than the widest one (295). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (315mm), which results in 126mm sidewall height. In 315/40 R21, there is only one possible speed index for Yokohama BluEarth winter V905 - "V", which is good for speeds up to 240 km/h.
Yokohama BluEarth winter V905 is made in 141 sizes, starting from 185/55 R15 up to 295/30 R22.