How convenient that they put the max psi rating on the inside of the rim. I looked at the rim last night and could not find it on the rim itself (as it had a tire on it). I guess I'm going to have to have the tire pulled (its no good anyway) so that I can get the max psi for the steel rim.
My TT came with forged aluminum wheels and D rated tires for 65psi. I swapped them out for E rated tires and 80 psi. Not one iota of a hint of any problem after two years. I pull 60-65 mph max with an occasional foray into the 70 mph zone. Some will condemm me for my actions, some will praise me. I, myself, could care less your thoughts as it's my TT and it definitely works well for me. All of you should be full grown and able to decide for yourselves. Its all well and good to err on the side of caution, but for the life of me, I really can't understand why some of you have a tendency to overthink some things. If a wheel can stand the weight with 65 psi, then I can see no reason why the same wheel can't carry the same weight with 15 more pounds of pressure. Your coaches didn't get any heavier did they? Weight should remain the same, only the ability to be safer is there. JMHO and flame suit is on and working.
Hey TDD, with the E tires on your rig, do you ever have trouble finding a gas station that has an air pump that will put 80psi into your tires? What about the stiffness of the new tires... do you find that your stuff in the camper gets tossed about a bit more and more things move around when you travel, or is it about the same as with the D tires. Thanks for your input.
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Turbo Diesel Dude wrote: I, myself, could care less your thoughts as it's my TT and it definitely works well for me. All of you should be full grown and able to decide for yourselves.
People come here to share their thoughts ideas and knowledge… I believe their intent is to be helpful and maybe to learn something in the process… some that come don’t know how to take constructive criticism well or see it as just criticism, others find the source of information useful… making informed decisions has little to do with being full grown and a lot to do with having a open mind, being able to weigh the differing views and then making those informed decisions for yourself… it would surely be a waste of time to come here for information if you already believe you have all and the only answers because you are fully grown, but as you say its your time to waste…
I really can't understand why some of you have a tendency to overthink some things. If a wheel can stand the weight with 65 psi, then I can see no reason why the same wheel can't carry the same weight with 15 more pounds of pressure. Your coaches didn't get any heavier did they? Weight should remain the same, only the ability to be safer is there.
Or understand why one believes under thinking or not researching things would give them any better answers or maybe the wrong ones…
In your example you are right the weight of the trailer wouldn’t change even with the elevated PSI… but the reason it matters is a over inflated rim can fail with a split shoulder.. The OEM rim comes fitted with a tire matched to its load capacity in weight… this is a requirement they must meet, but rims of different materials and construction will have different capabilities and using 80PSI even with the same weight coach can exceed those capabilities…
Love my mass produced, entry level, built by Lazy American Workers, Hornet
I have never seen a rim fail due to air pressure from 65-80#.
I have experienced a rim failure where the welds on the spokes failed where they were attached to the rim. As explained to me it was a rim under designed for the load.
H & E wrote: I am having a new set of Denman installed today. They are load range D to replace the C’s that tend to blow out. Denman is the only company that I can find that makes a 205/75 R15 D rated tire. I do not have room for the 225 size.
I did the same thing on my 2004 Rockwood 8318SS. Had several blowouts before the switch. A few years go I replaced the 205/75R15 load range Cs with Denman 205/75R15 Ds. So far so good.
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