Maxxis Load D To E - Bouncy Ride

op wrote:
They said it will be a sacrifice of a stiffer ride at 80 and more weight carrying capacity on the tire of a softer ride and not getting the full benefit of the E's capacity.

Correct

My question then is what benefit is an E over a D if you do this? Don't you effectively give up all the extra load carrying capacity and in essence just have a Load D or is the E still a better and stronger tire at 65 than a D at 65. tks

The E tire at 65 psi is not any stronger than the D tire at 65 psi. Its been my experience when pulling trailers for a living the E tire at only 65 psi will create more carcass heat than the D tire at 65 psi.

This from Tireman9 our resident tire engineer has said on the subject of derating a tires pressure on a trailer;
Tireman9
rvtiresafety.com


The question of load capacity and Load Range gets asked a lot, so it seems to be a bit of a stumbling block for a number of RV owners. Here is an example:
"I need to replace the ST235/75R15 tires on my trailer. Currently have load range C tires which is sufficient for the maximum trailer weight when inflated to 50psi but allows almost no safety margin. I want to change to either load range D or E tires. My rims are only rated for 65 psi so if I went to the load range E tires I would only be able to inflate them to 65 psi. My question is this. Is there any advantage to a load range E tire used at 65 psi vs a load range D tire at 65 psi?"

Now just because he is asking about a 15" trailer application and considering a change from LR-C to LR-D it does not mean the general answer does not apply to others, even if they are considering a change from LR-G to LR-H on a Goodyear 295/75R 22.5 Class-A tire.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The answer to the question is;
He will gain a safety margin if he increases his inflation to 65psi with LR-D but if he stays at 65 psi there is nothing further gained by going to LR-E as there is no difference in the capacity at 65 psi.