Quote:
Originally Posted by Slow Hand
I am currently running that same tire on my Montana and getting great wear out of them. With all this tire talk you would think there is only one tire that should be on your RV. Not true. Many tires out there that will work nice on your trailer. Just like the truck. No one uses the same tire as everyone else. I prefer truck tires because of the higher speed rating. Some tires have a max speed of 65 MPH. Load rating will be about the same. Get the max of both if you can. I have 80 PSI wheels on my trailer and not going to buy new wheels just so I can run the 110 PSI tire.
Another thing about the 110 PSI tire. That's a lot of pressure and I am not sure why they make tires for RV's with that much air pressure. Can you imagine the explosion if you have a blow out with one of those tires? Not to mention the damage they would cause.
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None of the newer model Keystone Trailers after year 2007 came with LT tires except those with 16" steel cased LT RST tires at 110# PSI. In year models 2005 & 2006 Keystone installed a lot of OEM LT tires on 6000# axles. Those 80 PSI LT tires were phased out by 2007. Once a trailer gets to the 6000# axles the ST tires pretty much rule because of their greater load carrying capacities. RV trailer tires with the load capacity for the heavier trailers are going to have the much higher PSI requirements. The necessary load capacity to support the higher trailer loads can only be achieved with higher PSI settings. The larger trailers are pushing the 13.5" height limits for almost all highways. Taller, larger tires just cannot be used without risking going over the trailer height limit; so, stronger steel cased RV trailer tires are becoming the norm for those larger, heavier trailers. Soon we will see low platform, low profile regional 17.5" commercial trailer tires on 8000# and above axles. They are about the same height as the 16" and still require 110 - 125# of PSI to provide the load capacity to support the loads on those larger capacity axles.
Note: Because of the RVIA load capacity reserve recommendation; 6000# axles minimum tire load capacity requirement will be 3300# each. There are no suitable 16" LT tires available in today's market that can fill that requirement. (The GY G614 is a RST tire, meaning trailer use only). (GY and others have a new size; ST255/85R16 LRE with a load capacity of 4080# @ 80 PSI, but it's more than 33" tall and most likely won't retro fit most older model trailer wheelwells).