I know this isn’t an ATV/UTV tire question but there’s no "Trailer" forum so I’m hoping you all can help…

I’m planning a trip from Philadelphia to Windrock (TN) and am taking 4 quads with me on my Triton 4 Hauler. Currently it has 205×65-10 tires (bias ply) and am worried about the load + travel time (14hrs) on these small tires.

Any suggestions on tires and rims that I can upgrade to that will make it a better long hauler? Can I put a different size / configuration on that will make it safer?

Thanks!