Truck tires are more than “where the rubber meets the road.” Understanding truck tire sizes, tire load ratings, why ply no longer matters, and more is important for today’s fleet managers.

This month, we’ll discuss the tire basics, including load and speed ratings, what the writing on the sidewall means, metric vs. standard sizes, and how to best maintain them.

Tire markings aren't random, they reveal crucial details about your car's capabilities. Find out what ZR means and why it ...

One part of the string of information on the side of your car's tires is the load index, which is critical for your safety. Here's why it's important.

To read Goodyear’s heavy-duty truck tire chart, for example, first check the maximum load rating and pressure on your tire. Then match that size and maximum pressure rating with the maximum load ...

Consumer Reports deciphers the cryptic sidewall codes on a typical tire, explaining how to decode tire size, load index, maximum pressure, speed rating, and more.

LT (light truck, LT265/75R16E, for example) tires are similar, except that the load rating is a letter, just as it appears on flotation tires.

Those 10-ply tires now have another name, but they still offer advantages over other kinds of tires. Here's what a 10-ply rating means, and why you'd want it.

The Metric tire will have greater load capacity reserve than what came on the car as original equipment and is an acceptable substitute. A number of tire manufacturers allow for this substitution.