I’ve got a tiny little 3x5 HF trailer that I’ve used for tent camping for the last 3 years. Just got back from a 4,400 mile 2 week round trip to Colorado and after a total of 5-k miles over the last 3 years, much of it at 80mph on those tiny wheels, I finally had to tighten up one wheel bearing at last, even with those itty bitty 10” wheels doing a gazillion rpm. Based on that I’m confident that those Chinese hubs should be fine with 12-13” wheels on a teardrop under 80mph
Why I need a teardrop - this is just too small for 2 weeks and 4,400miles!