Dunlop Grandtrek At5 275/65 R17

Dunlop Grandtrek At5 is a summer tyre made in total of 15 sizes, ranging from R16 to R16 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 275/65 R17 is 60mm wider than the narrowest dimension (215) and 10mm narrower than the widest one (285). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (275mm), which results in 178.75mm sidewall height.