Dunlop SP Sport Maxx RT is a summer tyre made in total of 57 sizes, ranging from R16 to R16 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 285/30 R20 is 80mm wider than the narrowest dimension (205) and 50mm narrower than the widest one (335). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (285mm), which results in 85.5mm sidewall height. In
285/30 R20, SP Sport Maxx RT usually competes against
P ZERO, which is a tyre from
Pirelli with a rating of 0%, compared to 0% of the
Dunlop in question.