Sumitomo Bc100 185/55 R16

Sumitomo Bc100 is a tyre made in total of 137 sizes, ranging from R13 to R13 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 185/55 R16 is 40mm wider than the narrowest dimension (145) and 70mm narrower than the widest one (255). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (185mm), which results in 101.75mm sidewall height.