Answer
Sep 12, 2024 - 10:36 AM
"D" stands for bias ply construction and "R" for radial construction. Radial tires (R) tend to offer better fuel efficiency, cooler running, and longer life on highways, while bias ply tires (D) are generally more durable and resistant to damage from off-road use or heavy loads. Therefore, the better option depends on your specific use case.