What does 116T means on tires?

The "116T" on tires indicates the tire's load index and speed rating. The number "116" refers to the load index, which signifies that the tire can support a maximum load of 1,118 pounds (or 507 kg) when properly inflated. The letter "T" denotes the speed rating, indicating that the tire is rated for a maximum speed of 118 mph (or 190 km/h). Together, these ratings help ensure that the tire is suitable for the vehicle's weight and intended speed.