Tire load capacity and speed ratings are essential factors to consider for your Toyota 4Runner's safety and performance. The load capacity indicates the maximum weight each tire can carry while providing you with a safe ride. Thus, it is crucial to always get the minimum load index recommended by Toyota – only go higher, but never lower.
Meanwhile, the speed rating shows you the maximum speed at which a tire can operate safely. Choosing a tire with a lower speed rating than recommended by the manufacturer can lead to tire failure, loss of control, and reduced handling, particularly at higher speeds. Therefore, it's essential to choose tires with a speed rating that meets or exceeds your Toyota 4Runner's capabilities to ensure safety and optimal performance.