The wheel does seem to be the Achilles' Heel of the Aosom single wheel cargo trailer (SWCT). One account suggests that the rather clever suspension system (placing Aosom in the mid-range between an Ibex at the top and Rage Powersports or Revolution further down the list) was designed for a 100 psi tyre on a non-radial spoke wheel, the cheapo substitute less able to provide a smoother ride when carrying heavier loads. There is also the cheap and nasty red dry bag that pales in comparison with its rivals. Still, my Aosom SWCT works reasonably well although I will buy a better wheel when the opportunity arises. Of more concern is whether the steel frame was treated -- if not it may need a rustproofing paint job with something like a POR-15 starter kit.