In theory, putting on overly-beefy tires could cause the trailer to bounce more, since the load would not put enough stress on the sidewalls to permit them to flex. (Kind of like trying to jog in hiking boots.)
In reality, I doubt that. I put Load Range D Endurance tires on my little trailer, which is far more than I need. I have not noticed any difference in the trailer's behavior.
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2012 Fun Finder X-139 "Boondock Style" (axle-flipped and extra insulation)
2013 Toyota Tacoma Off-Road (semi-beefy tires and components)
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