Ok folks since most of us here running a motorhome are not fulltime or long haul drivers I went to the real source about this issue of singles or duals, now all of you need to understand I did not know the real answer either but I think the people who run them all over the US might so read about this topic at www.overdriveonline.com/readers-mixed-on-wide-single-tires/ And see how to answer this with real info and help.