Michelin Load & Inflation Tables

[cmillsap]

(05-12-2013 19:30)DonB Wrote:  

(05-12-2013 18:06)mbulriss Wrote:  The max load on that tire/wheel combo is 8,000 lbs at 130

The 8.25-inch rim is only rated for 120, so it is 8000 at 120.

Michelin puts the 8.25-inch table in each book, and I happen to have 2007, 2010, and 2013 books on hand, so images for the 315s on 8.25-inch rims are attached.

A cursory reading does not indicate any weight changes, except 75PSI values were added between 2007 and 2010. They also changed the minimum spacing from 13.2 to 13.5 inches between 2007 and 2010.

My drivers have 13.0-inch spacing. I would not have put 315s on there, but Chuck did, and I'm not going to replace new tires, so I run 100PSI on them when 80 is nominally enough. As I recall, Shane has been doing that for years.

Don,

I think that as long as the tires do not touch, all's well. Obviously, low tire pressures could allow the tires to touch; so maintaining proper inflation is important.