285/30 R21 Dunlop SP Winter Sport 4D variants
Dunlop SP Winter Sport 4D is a winter tyre made in total of 43 sizes, ranging from R15 to R15 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 285/30 R21 is 90mm wider than the narrowest dimension (195) and 0mm narrower than the widest one (285). 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 R21, there is only one possible speed index for Dunlop SP Winter Sport 4D - "W", which is good for speeds up to 270 km/h.
285/30 R21 100 W
C
C
73dB
Dunlop SP Winter Sport 4D is made in 43 sizes, starting from 195/65 R15 up to 285/30 R21.