Goform GH18 is a summer tyre made in total of 9 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/50 R20 is 50mm wider than the narrowest dimension (205) and 0mm narrower than the widest one (255). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (255mm), which results in 127.5mm sidewall height. In
255/50 R20, GH18 usually competes against
PremiumContact 6, which is a tyre from
Continental with a rating of 71%, compared to 0% of the
Goform in question.
