Can ST235/85R16 be Inflated Past 80 PSI  

The 235/80-16 tires you are using now have an overall diameter of 30.8" whereas the 235/85-16 tires you are looking at have an overall diameter of 31.7" therefore, you will gain around .45" of height overall. For this, I…

Special trailer tires should always be inflated to the maximum psi pressure figure shown right on the tire sidewall. Always check pressure and inflate as needed with the tires cold, such as first thing in the morning. As you drive and as the…

The same dynamics for passenger tires are not applicable for trailer's. Therefore, I do not recommend using a smaller tire on your trailer as a spare. The spare tire on a vehicle is mainly designed to get you to the nearest repair station.…

Generally, I do recommend that all tires on your trailer be the same size at all times, so ideally your spare will match the existing tires on your trailer. With that being said, the difference between a 175/80-13 and a 175/80-13 tire is only 0.3…

As a general rule, when towing a gooseneck trailer with a regular bed pickup truck, you will want at least 4-6 inches of clearance from the top of the bed rails to the trailer. I first recommend determining the distance from the base of the truck…

If you're comparing the same load range tire, the ST235/80-16 will always have a thicker, stronger sidewall specifically designed for the vertical load it'll need to contend with for trailer use. The LT tire is designed for a light…

We have the Americana valve stem part #AM20906 which is a metal valve stem that fits valve stem hole in trailer wheels that are either .453 and .625 inch. These two sizes basically cover all trailer wheels. The valve stem can also handle over 100…

You shouldn't have any problems switching to the slightly larger ST235/85R16 tire but you would need to replace all of the tires at once. Having different sized tires on a trailer (even if the size difference is small) will drastically speed…

The only time that a metal valve stem like part #AM20906 is required is when the psi rating meets or exceeds 100 psi. If you plan on using the Kenda 205/65-10 Bias Trailer Tire with 10" Galvanized Wheel #AM3H490 then you don't have…

Dexstar Steel Mini Mod Trailer Wheel #AM20794 has the same 3,960 pound capacity at 110 psi as Karrier ST235/85R16 Radial Trailer Tire #AM10501. So if you are looking for an 8 on 6-1/2 bolt pattern these two would be a great match. For a valve stem…

There seems to be a mix up somewhere. Trailer tire #AM10501 that you have referenced is size 235/85-16, not 235/80. We have 2 tires in size 235/85-16. First, #AM10501, is a load range F and is rated for 3,960 pounds at 95 psi. Then we have…

I spoke to Americana, the manufacturer of the Metal, Bolt-In Valve Stem #AM20906, and they can be used on your 2017 Ram 3500 Dually. However, newer vehicles may have tire pressure sensors in the wheels and if they are removed, they can throw a code…