Bridgestone DriveGuard winter 215/55 R16

Bridgestone DriveGuard winter is a winter tyre made in total of 11 sizes, ranging from R15 to R15 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 215/55 R16 is 30mm wider than the narrowest dimension (185) and 10mm narrower than the widest one (225). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (215mm), which results in 118.25mm sidewall height.