BF Goodrich g-force Winter 245/40 R19

BF Goodrich g-force Winter is a winter tyre made in total of 27 sizes, ranging from R13 to R13 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 245/40 R19 is 90mm wider than the narrowest dimension (155) and 0mm narrower than the widest one (245). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (245mm), which results in 98mm sidewall height.