GoodYear UltraGrip Performance 3 315/40 R21

GoodYear UltraGrip Performance 3 is a winter tyre made in total of 356 sizes, ranging from R14 to R14 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 315/40 R21 is 140mm wider than the narrowest dimension (175) and -30mm narrower than the widest one (285). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (315mm), which results in 126mm sidewall height. In 315/40 R21, UltraGrip Performance 3 usually competes against WinterContact TS 870 P, which is a tyre from Continental with a rating of 94%, compared to 95% of the GoodYear in question.