This customer stopped in and saw we had a tandem axle ATV trailer here.  He wanted to have a single axle trailer to pull behind his quad and wanted to put tracks on it.  We ordered this one 6' long tub, and didn't bother getting the tires with it.  We ran into a issue that the tracks presented with the height difference between how high the quad is with the tracks and the fact that the tracks didn't raise the trailer at all.