I'm in need of a trailer for my atv. I don't have much space to store it, and the budget is a little tight so I thought one of those folding trailers would be perfect. I'm wondering if anyone has one or knows somebody that has one and what their experience is with it - assembly, quality, etc. I was checking them out at harborfreight.com. They have a 'heavy duty' tilt model 4x8 for $199. They actually have the owners manual available online and I noticed it recommended not exceeding 45 mph, even though it has with 12" highway tires. Is that a standard warning for trailers in general, or are these really not highway usable?

Thanks for any feedback.