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Replacement Load Range G Tires and Determining PSI Rating for Wheel

Question:

I have a 2016 Jayco Pinnacle 5th wheel that weighs approximately 13300 empty. I want to put G rated tires on but I am not sure that my current wheels would allow for 110 PSI. The current wheels look very similar to the Jaguar wheels you show, how can I tell if my wheels are compatible with these tires. Currently has E rated tires and I have already had an issue with one. Thanks

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Expert Reply:

Typically the psi rating for a wheel will be printed on a sticker on the back of the wheel or stamped into the metal of the wheel itself (on the back). The tire that is mounted to the wheel will be at or below the psi rating for the wheel and you should always inflate trailer tires to their maximum psi as listed on the sidewall.

You can also take a look at the valve stem on your existing wheels. Typically valve stems that have rubber all the way up to the treads like # AM20903 will be rated for around 65 psi. If there is some reinforcement between the rubber and threads, like # AM20904, it will be rated between 80 and 100 psi. The only valve stems that are rated for more than 100 psi are metal ones like # AM20906. If your wheels do not have metal valve stems, then they likely cannot hold the pressure of 110 psi that is required for a Load Range G tire like the Westlake # LHWL410.

For a tire and wheel combo, I recommend the Westlake # LHAXSO513B. This ST235/85R16 tire is mounted to the 16 inch Bobcat Aluminum Wheel that you mentioned and features a maximum load of 4,080 pounds at 110 psi.

I have attached a video demonstration on this set that you can also take a look at.

expert reply by:
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Chris R

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