Sailun Atrezzo ZSR 2 315/35 R21

Sailun Atrezzo ZSR 2 is a summer tyre made in total of 139 sizes, ranging from R16 to R16 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 315/35 R21 is 110mm wider than the narrowest dimension (205) and 0mm narrower than the widest one (315). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (315mm), which results in 110.25mm sidewall height. In 315/35 R21, Atrezzo ZSR 2 usually competes against N Fera Sport, which is a tyre from Nexen with a rating of 72%, compared to 76% of the Sailun in question.