Dunlop SP WINTER SPORT 3D 275/35 R21

Dunlop SP WINTER SPORT 3D is a winter tyre made in total of 145 sizes, ranging from R13 to R13 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 275/35 R21 is 90mm wider than the narrowest dimension (185) and 0mm narrower than the widest one (275). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (275mm), which results in 96.25mm sidewall height.