"Cedar Creek weighing 11,700 wet"
So let's do some math. 11,700# minus 20% pin weight is 9,360# divided by 4 tires is 2,340#.
Why in the HE!! are some of you recommending "G" tires for such a light load?
Goodyear Endurance ST235/80R16 3,420# @ 80psi Load range "E".
ENEURANCE line has been on the market for a full 3 years now with a STELLAR record.
OP, what size tire is on your RV?