Pirelli P Zero Winter 2 is a winter tyre made in total of 48 sizes, ranging from R18 to R18 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 285/35 R20 is 50mm wider than the narrowest dimension (235) and -10mm narrower than the widest one (275). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (285mm), which results in 99.75mm sidewall height. In
285/35 R20, P Zero Winter 2 usually competes against
UltraGrip Performance 3, which is a tyre from
GoodYear with a rating of 95%, compared to 94% of the
Pirelli in question.