BFGoodrich Advantage 255/35 R20

BFGoodrich Advantage is a summer tyre made in total of 153 sizes, ranging from R14 to R14 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/35 R20 is 100mm wider than the narrowest dimension (155) and 0mm narrower than the widest one (255). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (255mm), which results in 89.25mm sidewall height.