Goodyear Duramax Gen-2 225/70 R15

Goodyear Duramax Gen-2 is a tyre made in total of 6 sizes, ranging from R15 to R15 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 225/70 R15 is 30mm wider than the narrowest dimension (195) and -20mm narrower than the widest one (205). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (225mm), which results in 157.5mm sidewall height.