Bridgestone DriveGuard 225/55 R16

Bridgestone DriveGuard is a summer tyre made in total of 20 sizes, ranging from R15 to R15 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 225/55 R16 is 40mm wider than the narrowest dimension (185) and 20mm narrower than the widest one (245). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (225mm), which results in 123.75mm sidewall height.