BFGoodrich Touring 175/70 R13

BFGoodrich Touring is a summer tyre made in total of 11 sizes, ranging from R13 to R13 - this particular dimension is R13, which means it fits to a 13 inch/330.2mm diameter wheel. 175/70 R13 is 40mm wider than the narrowest dimension (135) and -20mm narrower than the widest one (155). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (175mm), which results in 122.5mm sidewall height.