Bridgestone Potenza Sport 305/30 R19

Bridgestone Potenza Sport is a summer tyre made in total of 204 sizes, ranging from R13 to R13 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 305/30 R19 is 100mm wider than the narrowest dimension (205) and -10mm narrower than the widest one (295). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (305mm), which results in 91.5mm sidewall height.