The 7.00-15LT tire bias ply 10 ply rated 2403 lb capacity and 29.4" diameter is probably the Kenda brand as they manufacture/sell cheap low cost foreign made bias ply/radials/ST and LT tires to the RV/lawn service trailer industry by the hundreds of thousands at a low cost. If you want to run them...... thats your call.
If it was my trailer I would go with a Maxxis LT UE-168 or the Goodyear Cargo G26 both are a commercial grade tire.
They come in a 225/70R 15C at 65 psi and 2470 lb capacity. Both are the new euro size tires all position tires used for commercial light trucks, transporters, vans and trailers. Both tires have a very good reputation on All types of trailering websites.
And of course the best upgrade is new 16" wheels and LT225/75-16 E at 2680 lb capacity for 7-10 years and 40k-60k miles.
Life is full of choices ...good luck.
Others replies are the best idea and should always be the #1 job done before any trailer is put on the road.
