Sailun Atrezzo ZSR SUV 275/50 R20

Sailun Atrezzo ZSR SUV is a summer tyre made in total of 34 sizes, ranging from R18 to R18 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 275/50 R20 is 50mm wider than the narrowest dimension (225) and 10mm narrower than the widest one (285). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (275mm), which results in 137.5mm sidewall height.