Question: what is the difference between 10 ply and 4 ply tires?
Answer: 10 ply is 2 1/2 times thicker than 4 ply. I would recommend 4ply only if you live in a gated community, and never drive further than Village Inn 1 mile away. However if you ever go on dirt roads, or through the nonstop construction zones, or even Home Depot I would consider 10ply.