Nokian Hakka Black 3 is a summer tyre made in total of 58 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/45 R20 is 30mm wider than the narrowest dimension (225) and 30mm narrower than the widest one (285). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (255mm), which results in 114.75mm sidewall height. In
255/45 R20, Hakka Black 3 usually competes against
Roadhawk, which is a tyre from
Firestone with a rating of 60%, compared to 54% of the
Nokian in question.
Summer
