Wheels and Tyres Size Designation
The following diagrams describe how to read the different tyre size designation in Passenger and Light Truck tyre construction that may be found within the tyre market place.
Passenger Radial Tyre Construction
P – Metric Size Designation – Diagram 1
Metric Size Designation – Diagram 2
Light Truck Imperial Designation – Diagram 3
Light Truck Imperial Designation – Diagram 4
Light Truck Metric Designation – Diagram 5
Light Truck Metric Designation – Diagram 6
The light truck designations are depicted as either imperial or metric. Imperial is where the tyre section is measured in inches as in diagram 3 and 4.
The metric designation shown in diagram 5 and 6 where the section width in in millimetres.