Firestone TZ300a 195/50 R16

Firestone TZ300a is a summer tyre made in total of 12 sizes, ranging from R15 to R15 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 195/50 R16 is 20mm wider than the narrowest dimension (175) and 0mm narrower than the widest one (195). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (195mm), which results in 97.5mm sidewall height.