Cooper Discoverer Winter 215/40 R17

Cooper Discoverer Winter is a winter tyre made in total of 91 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 10mm wider than the narrowest dimension (205) and 80mm narrower than the widest one (295). 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.