See also:

Load index
Tire data is vehicle-specific and may deviate from the data in the example. In addition to the load bearing index, load index 1 may be imprinted after the letters that identify speed index 6 ...

Aspect ratio
Relationship between tire height and tire width in percent. ...

Coupling up a trailer
Observe the maximum permissible trailer dimensions (width and length). Most U.S. states and all Canadian provinces require by law: safety chains between the towing vehicle and the trailer. The ch ...