LOAD INDEX

The load index is an assigned number ranging from 0 to 279 that corresponds with the load-carrying capacity of a tire. Most passenger car tire load indices range from 75 to 105 – although some passenger tires carry more.

Using this example, a tire size 205/60R15 91V, the load index of 91 corresponds to a load-carrying capacity of 615 kg (1356 lbs) at maximum inflation pressure. The speed symbol of the tire is the second part of the service description. The service description system is used with all tires except Unlimited Z. For Unlimited Z rated tires, consult the vehicle manufacturer for maximum speed.