Firestone Tsp3000 245/70 R17

Firestone Tsp3000 is a summer tyre made in total of 17 sizes, ranging from R17 to R17 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 245/70 R17 is 235mm wider than the narrowest dimension (10) and 180mm narrower than the widest one (425). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (245mm), which results in 171.5mm sidewall height.