Dunlop Grandtrek AT23 is a summer tyre made in total of 2 sizes, ranging from R18 to R18 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 285/60 R18 is 10mm wider than the narrowest dimension (275) and 0mm narrower than the widest one (285). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (285mm), which results in 171mm sidewall height. In
285/60 R18, Grandtrek AT23 usually competes against
Roadhawk, which is a tyre from
Firestone with a rating of 60%, compared to 0% of the
Dunlop in question.
