Will A Trailer Wheel With A 2280lb Load Rating Hold Up To 110 PSI From ST235/80R16 Tire?

Published 07/20/2021

Products Featured in This Question

Aluminum Viking Series Valhalla Trailer Wheel - 16" x 6" - 6 on 5-1/2 - Silver Spoke

(487)

$160.17

Americana Metal, Bolt-In Valve Stem - 1-1/4" Long

(601)

$21.95

Provider HD ST235/80R16 Radial Trailer Tire - Load Range G

(249)

$307.18

Question:

I am looking to upgrade my tires/wheels on the 5th wheel. It is rated at just over 10k LBs and I am currently in the process of upgrading the axles as Ive had one fail. The new custom axles are 6k lb cap with 6 on 5.5 hubs and 12in brakes. I understand this does not increase the load cap of the trailer but the peace of mind is what Im looking for. I also just recently upgraded the suspension to the Roadmaster slipper spring 5k lb kit with shocks. I am looking at getting these wheels with the Provider ST235/80R16 Radial Trailer Tire - Load Range G - PRG80235 on them. My concern is the PSI. with a wheel rated at 2280lb can the wheel handle the 110psi? I know I will never come even close the rating of the tire which is what I am wanting....peace of mind. Thanks for your input.

asked by: Brad V

Expert Reply:

I would be happy to help!

Wheels do not have a PSI rating, as that rating is solely for the tire, and the valve stem. Since the Provider ST235/80R16 Radial Trailer Tire - Load Range G # PRG80235 have a max load of 4080lbs at 110 PSI you will need to use a valve stem rated for that much pressure or more. I recommend going with the Americana Metal, Bolt-In Valve Stem - 1-1/4" Long # AM20906 which is rated for well over 100 PSI, and will hold up perfectly with 110 PSI.

When it comes to the wheel the only limiting factor will be the load rating. In the case of the wheel you mentioned you would be limited to 2280lbs, even though the tire is rated for much more, as you are limited by the lowest rated component.

Now if you went with the Aluminum Viking Series Valhalla Trailer Wheel - 16" x 6" - 6 on 5-1/2 - Silver Spoke # TA75FR you were looking at that has a 2830lb load rating, you would be limited to 2830lbs as that is the lowest rating between the tire and wheel.

Lastly to make sure this tire will fit on your trailer, you will need to compare its height and width to your current tires. The # PRG80235 measures 30.8" tall, and 9.3" wide. The general rule of thumb is there needs to be 3-4" clearance between the top of the tire and the bottom of the fender, and 1-2" between the inside edge of the tire and the frame.

If you can tell me what size tire is currently on your trailer I would be happy to confirm if these tires will fit.

I included videos of the products mentioned for you to take a look at.