Giti Gdr638 245/70 R19.5

Giti Gdr638 is a tyre made in total of 15 sizes, ranging from R18 to R18 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 245/70 R19.5 is 40mm wider than the narrowest dimension (205) and 20mm narrower than the widest one (265). 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.