What Tires Do I Need for a 31 ft. 5th Wheel Trailer with a Dry Weight of 12400 lbs.

Question:

I dont see the load pounds per tire on the 235/85/R16 E and F .. My 5thwheel trailer has a light load of 12.400 lbs. What tire do need ? Robert The trailer said that it came with 225/75/R16 and I had some tires on it when I bought it of 245/75/ R16 E The tires looked just fine but I lost all the tread on 1 in the night coming up the pass hwy. from the coast to our house. what do I Need

asked by: Robert J

Expert Reply:

The Karrier ST235/85R16 load range E tire, # AM10295, has a max load rating of 3,640 lbs at 95 psi and the Karrier ST235/85R16 load range F tire, # AM10501, has a max load rating of 3,960 lbs at 95 psi.

We also have the Karrier ST235/80R16 load range E tire, # AM10248, which has a max load rating of 3,500 lbs at 90 psi.

For your trailer with a max weight rating of somewhere above the 12,400 lb load you mentioned, you could use any of the tires mentioned above. With the load range E tires you would have a maximum capacity of 7,000 lbs or 7,280 lbs per axle and for the load range F tire the capacity is 7,920 lbs per axle.

The 235/85-16 tires are 31.75 inches tall and 9.26 inches wide, so you will need to take the size into account also. The 245/75-16 tire you mentioned should measure about 30.5 inches tall and 9.65 inches wide, so the 235/80-16 tire would be the closest option for you at 30.9 inches overall height and 9.4 inches wide.

expert reply by: Robert G