I could be wrong, but the original move to metal valve stems was for durability AND the strength to hold tpms sensors. Obviously you can use stronger stems and still stay at the trailer sticker pressures with no issues. These stems also tolerate higher temps - up to 400F. But you better pray your tires never get that hot. The higher pressure rating als requires they be properly torqued when installing to 35-55 inch pounds- something most places are not likely to have proper tools to do.
I don't know that its true that all wheels are rated to 80psi, and I wouldn't rely on anyone's statement here that they are. I think your choices are to get the mfgr. to provide you the info, or purchase new wheels with adequate capacity.
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--2005 F350 Superduty Crewcab, 6.0, 4wd, short bed, 3.73 gears;
--2016 Montana 3711FL, 40'
--2014 Wildcat 327CK, 38' SOLD
Some may claim that "snap-in" rubber stems work ok with TPMS but I posted videos on my blog on the movement of both type rubber stems along with a video of a failed "High Pressure" rubber stem.
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.Write a blog on RV tire application RV Tire Safety. 48 years experience as tire design & forensic engineer. My RV Freelander 23QB on Chevy 4500 chassis. Giving seminars on RV Tire applications (not selling)@ FMCA Conventions. Mar 20-22 Tucson AZ
I don't know that its true that all wheels are rated to 80psi, and I wouldn't rely on anyone's statement here that they are. I think your choices are to get the mfgr. to provide you the info, or purchase new wheels with adequate capacity.
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