I would also suggest, if I may, too much foam applied during the conversion stage, perhaps. which should have been ground away to fit if the coach were/is moved with the bags dumped and likely be no further problem, otherwise I would expect a burnt friction smell now if you do this (take it easy so as not to start any fire - have an extinguisher ready); (have someone) take a look at the tire while doing this as well. My unsolicited two cents.