Mounting a spare tire and wheel on the ladder is not even an option, its just a disaster waiting to happen, the underside is a good choice if you have some skills, bumper and hitch mounts are an option, the wheel is not your typical E-450 van wheel and its different for the motorhome, the hitch and bumper have been known to come apart with some who have put more than average hitch loads on them, an loads on the rear bumper. after seeing some of the failures posted on this site and looking at the way Thor did the hitch an bumper install I reinforced the hitch to frame and bumper to frame mounting, they did the very minimum when they built the coach, find a good welding shop an tell them what you want and go back and look at some of the mounts some of the members have done an posted on the site, that ladder is not enough to support the weight of the average senior citizen let alone the added weight of a tire and wheel
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