Pirelli Scorpion All Season SF3 is a allround tyre made in total of 21 sizes, ranging from R17 to R17 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 275/45 R21 is 40mm wider than the narrowest dimension (235) and 0mm narrower than the widest one (275). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (275mm), which results in 123.75mm sidewall height. In
275/45 R21, Scorpion All Season SF3 usually competes against
Winter Sport 5, which is a tyre from
Dunlop with a rating of 86%, compared to 0% of the
Pirelli in question.
