Moving from a 14" trailer wheel/tire to a 15" tire/wheel is one of the best upgrades you can do with a trailer if your trailer has room in the wheel wells for the upgrade.
The best part of the move it gets you away from a ST tire.
Depending on room in the wheel well and proper wheel pressure/wheel width requirements the Goodyear Wrangler HT in a LT235/75-15 C (50 psi) at 1980 lb capacity. Most LT tire makers carry this size.
And a Wrangler HT in a LT215/75-15 D (65 psi) at 2090 lbs capacity.
Maxxis LT U-168 is a commercial grade tire with several 15" sizes and have became popular with all types of trailer owners.
Vanco 2 from Continental another popular tire for trailer users has several 15" sizes and load capacities.
I see the Yokohama RY215 in a 700R 15 D at 2040 lbs capacity is popular on some of the other RV websites.
Goodyear Cargo G26 2249 lb capacity in a 225/70R 15 C 65 psi load range D for trucks/vans and trailers. The G26 also comes in a 195/70R 15 D load range.
Do your home work on the numbers.
Now if your wanting to stick with the 14" OEM wheel check out the Kumho 857 commercial class tires.
