I’m no engineer, but my experience with many types of RV’s and commercial vehicles is that maxing out a trailer tire is the way to go. Air carriers the load, the tire holds the air pressure, don’t skimp on the air.
On my trailer I keep my ST tires at the max. When I’m fully loaded I’m covered and if I’m less than full load the only downside is possible irregular wear. I’d rather have enough air pressure to cover the possibility of being heavy.
Going to a 19.5 is a great way to increase your load carrying compacity. If you have the clearance I would recommend 245/70R19.5 Load range G or H. The 245/70R19.5 will provide more load carrying and a wider footprint. Since 19.5’s are built with an ...
