Why Are The Factory Tires on My Trailer Rated for Less Than the GVWR  

I own a 2016 Shasta Oasis 18BH SINGLE axle. It has a dry weight of 3288lbs and a max vehicle rating of 3832lbs. After accounting for the added weight of gear that I presume is not factored into the manufactures dry weight” and is also not my own personal gear e.g., propane tank, interstate battery, 2 tires and a spare tire, etc., and then adding on the personal items, the trailer weighed in at 4100lbs on a CAT scale at a truckstop of note, fresh, black, and grey and hot water tanks had been emptied. My new tires Carlisle HD 205/75R14 are rated at 2040lbs max single load. This means that the max weight the tires on my trailer should carry, per the recommendation, is 4040lbs. My max trailer weight is 3832lbs, and I am currently pulling 4100lbs. Now, besides the fact that I find it dubious that the dry weight is actually 3288lbs as it is highly unlikely I have 812lbs of personal gear in my trailer Im in the Marine Corps and definitely know how to travel light, I am trying to figure out how one can find a tire that safely pulls this trailer. By its design meaning a single axle with only 14inch tires one will almost always be pulling the maxed out weight on Load Rating C and D tires. Amazingly, it came with Load Range C tires which cant tow the max trailer rating of 3832lbs, so I upgraded to the Carlisle Load Range D. Even with this upgrade, this is still not enough, in my opinion. There is absolutely no room for safety buffer. I am astonished that this trailer is built, stock, to essentially max out 14inch tire Load Ranges, and equally astonished that it came with a Load Range C tire that carries a combined max weight of 3640lbs, which as stated, cant even carry the trailers max rating of 3832lbs how they sell a trailer with tires that cant even carry the max recommended payload is beyond me! That said, I have placed a 15inch tire on a rim next to the 14inch rim. There is absolutely no way a 15inch tire can fit I even found rub spots on the 14inch tire, meaning it had already made contact with the fender. Is there any tire out there that has a higher load rating to more safely pull my loaded trailer? Or, is there a way to modify it to install a 15inch tire with a higher Load Range? Thank you for your time!

asked by: Justin P