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Capacity of ST235/80R16 Load Range G Tires on Gooseneck Trailer  

Question:

WHAT IS THE MAX CARRYING CAPACITY OF A GOOSENECK TRAILER WITH 8 ST235/80R16 14PLY TIRES IN DUAL ARRANGEMENT SET A 80PSI. EACH ?

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Expert Reply:

I can help you find the capacity of the tires on your Gooseneck trailer, but the GVWR of the trailer will depend on the weakest component. For that information I recommend contacting the manufacturer. Your tires should have the max load listed on the side based on the max psi. Multiply this number by 8 and you will have the capacity of the tires. There is not a general capacity I can give you since it varies between manufacturers.

For example, the Westlake ST235/80R16 Radial Trailer Tire - Load Range G # WE76FR has a max load for a single tire of 4,080 lbs at 110 psi and for dual tires it is 3,640 at 110 psi. Assuming a dual axle and dual tires for a total of 8 tires, you're looking at an overall capacity of 29,120 lbs for the tires. Again, that does not determine the carrying capacity of the trailer, only what the tires are capable of handling.

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Robin H

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