Regarding previous comments about the tiny wheels. I agree these are very strange. This is a snowmobile trailer that has been sold by Triton with these little wheels/tires for the last 20+ years, so I figure I will give it a try. Each snowmobile is about the same weight as a motorcycle (if not a bit more). I needed a snowmobile trailer in Quebec so it will remain there.
So far I have done 2000 miles with it as I am now crossing South Dakota. Aside for the aforementioned vibration, everything is good.
Might be worth a check on trailer wheel balancing and inflation level. Some suggest you don't need to balance trailer wheels or they should just be inflated to the max. All specific to trailers. I disagree with that approach.
It's very difficult to get inflation levels for trailer tires relative to load. For some Michelin trailer tires, they actually have a table that relates the load weight to inflation. Specific to those tires, but it points to something for consideration. I'd been running my trailer tires at a much higher pressure than what the new ones recommended. Towing was smoother. Discount Tire installed the tires on the wheels and said they always balance trailer tires.
I'm not sure how all this might relate to the snowmobile trailer wheels, but much of the standard guidance I'd seen has been counterbalanced by my experience - tire pressure and wheel balancing made a meaningfully difference in the quality of my towing experience.
Eville Rich
2016 S10