Exactly my point, if I'm to believe all the conversion charts on tyres; the 255/55xR18 tyre should be almost the same size as the standard fitment 245/65xR17 on the Trailhawk it's .4 of an inch wider being the difference on a
7 " wheel as opposed to the Trailhawk wheel being 7.5" Possibly not a good thing? Frustrating I say.
