Dunlop SP Sport MAXX TT 215/40 R17

Dunlop SP Sport MAXX TT is a summer tyre made in total of 26 sizes, ranging from R13 to R13 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 215/40 R17 is 20mm wider than the narrowest dimension (195) and 30mm narrower than the widest one (245). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (215mm), which results in 86mm sidewall height.