Let's end the misinformation regarding steer axle weight.

My steer tires are load range H Michelins rated for 7160lbs each in a "single" configuration.
The tires are 10.826 inches wide (275mm).
My steer axle is rated for 13,300lbs according to the sticker on the door jam.
The distance between my steer axle and front drive axle is more than 10 feet.

For the 12k/12.5k MAX folks (there are a lot of you from the searching I've done), show me one single state or federal law stating that my maximum legal steer axle weight is less than 13,300lbs assuming all other axle weights are legal and I am under gross.

In California, according to the CHP officer I spoke with personally, they go by the lesser of the tire weight rating or 20,000lbs only. They do not consider the axle weight rating of the truck manufacturer, although I was advised that exceeding 13,300lbs in my case was unsafe, but not citable.

On an unrelated note, I am considering LTL and fuel carriers in the so cal San Fernando valley. Please PM me leads or recommendations if you have one.

 

I have heard this, can you please name these states? I've seen 620, 650, but not 600. I'm also unclear about whether they round up, round down, or use the exact width.

Assuming the worst case scenario, rounding down to the nearest inch, and 600lbs per inch, I would be limited to 12,000lbs. But I need proof that this is the law anywhere.

 

A quick google search comes up with MN, OR, WA as states with a 600lb per inch steer tire weight limit. Does anyone know if they round up, down, or use the exact measurement in this calculation?

 

I'm also reading that the "pound per inch" rule only applies to heavy haul/permit loads with super singles. And only applies on state roads. For non-permit interstate driving, you use the tire mfg's rating. Any input?

 

I believe that what most people refer to as super singles are actually "wide single drives" and super singles have traditionally referred to the beefy steer tires you typically see on heavy haul applications and cement mixers.

Either way, I'm referring to the beefy steer tires.