Huntindog wrote:
Your quote is accurate but,,, It is not the complete set of regulations.
The point I was making is that the FMVSS 109 standard doesn't include wheelbarrow tires and the like. :-)
Having said that, the comparison between ST and LT testing specs is very illuminating. This is nicely done and well worth the read. Thanks for resurrecting it.
The other point I've been trying to make is that the RV manufacturers put us all at risk because the factory installed tires aren't rated for the loads they'll see when underway. Even the RVSEF messes up on this issue by not considering dynamic forces when checking load at each wheel. Either ST or LT tires with a higher load rating can help with this. But ultimately the NHTSA is remiss in not requiring a margin between tire load rating and tire load at GVWR.