It's one thing to have the tire load rating but another to know the actual load on the tire/wheel.
Many cast aluminum wheels with have indicators of date of mfg. I would help to know that to see if we are looking at a batch issue. Pictures on any numbers on the wheel would be of interest to NHTSA along with the VIN.
Has anyone with a wheel failure bothered to file a complaint with NHTSA? If there is a trend they can order a recall.
I also note that there is no mention of potential damage to tires being run under-inflated. This could mean some folks will get a surprise months down the road due to cumulative damage.
This is an example of an advantage of having a TPMS. The driver would get warning of air loss as soon as the wheel started to leak. (not days / weeks later depending on how often the psi is checked)
I'll be honest and say that I don't know the load per wheel on my trailer. I had the opportunity to have the rig weighed at the national rally this summer but passed. Based on experience with my previous weighings and knowing how we load our trailer, I can say with relative confidence that none of my wheels is probably carrying the full 3750 lb. rating (one or two may be close).
I have a TPMS on ours and keep my tires between 105-110 psi cold pressure all the time. When each of mine leaked out air, I was stationary (both leaked down overnight).
The first rim I didn't have to move anywhere for a while, so I had the luxury of waiting for the new rim and having it mounted and balanced before moving. The second rim rode in the back of my truck for several days until we arrived at a destination where I could get replacements sent.
It didn't occur to me to file with NHSTA. I assume that they would want to see them? (I've disposed or recycled both of mine, so too late if so). Based on where both of mine leaked and where other posters have mentioned theirs leaked, it appears to have been a casting problem. Of course Tredit wouldn't admit to any issue, but were happy to proactively send me replacements for my other two good wheels.
As noted earlier, the replacement wheels have the same general spoke pattern but a built-up rim casting area. Not to say I might not have problems with the replacements down the road.