Trailer Tire Speeding Rating??
Recently purchased the new-to-us TT in my sig. For piece of mind, I plan to replace the tires in the very near future. Current tires are Rainier ST235/80R16 Load Range E. Since this is not a large ...
Forum Discussion
OP's TT tongue wt percentage 860/6740= 13%. At GVWR 11,260, 13% is 1,463 so at GVWR, axle wt is 11,260 - 1463 = 9,797 and /4 = 2,450 per tire needed.
OP's STs now 3,520 per tire at 80PSI, but LT would be more like 2,680 at 80PSI (so wheels can take that same as for ST) but still enough for weight but just enough margin for uneven wts per tire as is common with RV loading.
Since newer STs are good for higher speeds, all that would happens is OP loses weight margin, no speed advantage.
OP's STs now 3,520 per tire at 80PSI, but LT would be more like 2,680 at 80PSI (so wheels can take that same as for ST) but still enough for weight but just enough margin for uneven wts per tire as is common with RV loading.
Since newer STs are good for higher speeds, all that would happens is OP loses weight margin, no speed advantage.
