Yet another tire thread - Cougar X-Lite 26SAB
I know, I know ... not another tire question thread. Sorry, but there's so much out there that I get lost (and disheartened) before I can read it all. Simple question really. GVWR of my 5'er is 9...
Forum Discussion
Dayle1 wrote:
#2) Unless your weight is exceeding the current tire capacity, why change to E rated ST's? My point is that running a higher PSI rated tire at that higher number when you don't need the extra load capacity results in a tire that is too stiff and MAY beat the trailer and trailer suspension to death. Basically you are running an over-inflated tire. You can run an E rated tire at a lower PSI, but at say 65 PSI, it has the exact same load capacity as a D rated tire at the same PSI. But with more rubber, it will actually run hotter than the D tire.
I don't buy any of that.
The E rated tire has a stronger carcass and additional belts, which makes it resist damage from road hazards, bruises, and twisting. The same construction that makes it able to resist higher internal force (air pressure), makes it able to resist external forces.
I always run my ST tires at, or just below, max rated pressure. There isn't any reason not too. They will run cooler, pull easier, and handling is not an issue with a trailer.
