Dunlop SP Sport Maxx RT is a summer tyre made in total of 57 sizes, ranging from R16 to R16 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 275/30 R21 is 70mm wider than the narrowest dimension (205) and 60mm narrower than the widest one (335). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (275mm), which results in 82.5mm sidewall height. In
275/30 R21, 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.
Summer
