Thread: Tire pressure
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Old 11-30-2018, 09:16 AM   #26
CWtheMan
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Quote:
Originally Posted by jadatis View Post
Topicstarter was worried about needed pressure, and I gave some calc to show, what is important for that, nothing more.
But in the end it could show that he( or she) yust needs the 80 psi to have maximum reserve.
Not for no reason ST tires have a high failure-rate.
And the E load tires are placed , because the D- load had to low safety-reserve.
Here is one of the latest guides in print on the WWW that provides us with tire safety standards which also coincide with the governing bodies (DOT) regulations.

https://www.ustires.org/sites/defaul...TruckTires.pdf

The Recreational Vehicle Industry Association (RVIA) is a membership organization that often requires it participating members – about 98% of the RV trailer manufacturers – to go beyond the minimum safety requirements established by the governing body/industry standards.

Their newest requirement for members is to have them apply an available 10% in tire load capacity reserves above the trailer manufacturer’s certified GAWR values. That would mean that tires fitted to a 6000# GAWR axle would have to provide 3300# of load capacity with a set recommended cold tire inflation pressure.

Within that same RVIA document is a recommendation to no longer fit RV trailer wheels 14” or larger with bias ply tires.

Those are also factors you should try to work into your responses.
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