Pirelli SCORPION ICE & SNOW 315/35 R20

Pirelli SCORPION ICE & SNOW is a winter tyre made in total of 10 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 315/35 R20 is 80mm wider than the narrowest dimension (235) and 10mm narrower than the widest one (325). 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.