Bridgestone Blizzak DM-V3 295/40 R21

Bridgestone Blizzak DM-V3 is a winter tyre made in total of 74 sizes, ranging from R15 to R15 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 295/40 R21 is 90mm wider than the narrowest dimension (205) and -10mm narrower than the widest one (285). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (295mm), which results in 118mm sidewall height.