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Recommendation to Replace 235/80-16 Tires on Trailer


Hopefully this is my last tire failure. I want to go up from an e rating to a G rating but I cant find a 235 80 16 tire higher than an E rating. I only have 2 clearance between the tires now. What are my options? I am installing a TPMS system with the new tires


Expert Reply:

As you mentioned in your question, the highest load rating tire we have in the 235/80-16 tire size is a Load Rating E. If you would like to stick to the size you currently have mounted, I highly recommend looking at the Westlake ST235/80R16 Radial Trailer Tire # LHWL401. This radial tire has a maximum load of 3,520 pounds at 80 psi and an excellent maximum speed rating of 75 mph. The thing that sets this particular tire apart is the length and content of its warranty. This tire not only comes with a 5 year warranty, but it also includes 2 years of roadside assistance. This means if your RV or trailer has a flat tire, you can simply call the help line and a technician will come change the flat for you - 24 hours a day, 7 days a week.

The next available tire size that will allow you to go to a Load Range G is a 235/85-16 tire. This tire will have an overall diameter of 31.6 inches, compared to the 30.9 inch diameter of your current set. Since you do not have a lot of clearance to work with, you will need to ensure that a larger size will work on your trailer and within your wheel wells. It is recommended to have at least 1 inch of space between the front and rear tires when under load. If you do decide to go this route, the Westlake Radial Trailer Tire # LHWL410 is a great option. This Load Range G tire has a maximum load of 4,400 pounds at 110 psi and includes the same warranty mentioned above.

I have attached video demonstrations on both of these tires that you can also check out.

The most common cause of tire failure is excessive heat, which can be caused by under-inflating the tires, overloading their capacity or exceeding the speed they are designed to run at. The best way to prolong the life of your trailer tires is to always make sure they are inflated to the maximum psi as listed on the tire's sidewall. You should also make sure you are not exceeding the combined load capacity of the tires on your trailer and are staying under the listed speed rating. Installing a TPMS system is a great idea, and if you do not have one already, I recommend taking a look at the Tireminder RV Tire Pressure Monitoring System # TPMS-APP-4. This system is compatible with iPhone, iPad and Android smart devices and will work to check for tire issues every 6 seconds on up to 4 tires. I have included a video demonstration so you can see exactly what is included in the system.

I have attached a couple of articles on trailer tires and wheels that you might also find helpful.

expert reply by:
Chris R

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