Letter Re: Six Versus Eight Plies for SUV and Light Truck Tires
Hello, I’ve been enjoying reading your blog for several weeks now and wanted to add a bit on truck tire ratings from the perspective of somebody who used to own a small tire shop in truck country (rural Alaska). The whole thing with rating a tire by the number of plies dates back to the days of bias ply tires when the tires actually were load rated according to the number of plies. That system has been obsolete for years with the advent of radial tires, which are not constructed the same way to achieve the same strength. The letter …