The marking “115T” discovered on a tire sidewall signifies its load index and velocity ranking. The “115” represents the load index, a numerical code that specifies the utmost weight a single tire can carry when correctly inflated. A load index of 115 corresponds to a load-carrying capability of 2679 kilos (1215 kg). The “T” signifies the velocity ranking, which denotes the utmost velocity at which the tire is licensed to hold a load akin to its load index. A “T” velocity ranking means the tire is authorised for speeds as much as 118 mph (190 km/h).
Understanding these scores is essential for automobile security and efficiency. Utilizing tires with an inadequate load index can result in tire failure, significantly when carrying heavy hundreds or throughout demanding driving situations. Exceeding the designated velocity ranking can even lead to tire injury and will increase the danger of accidents. Tire producers set up these requirements by rigorous testing to make sure reliability and security for automobile occupants. Matching or exceeding the unique gear producer (OEM) specs for load index and velocity ranking is advisable when changing tires.
