Tire Cross Section

Tire tech information tire size guide be used on cars vans or light trucks.
Tire cross section. P225 50r16 91s the 225. They are sized to clearly indicate tire diameter in inches cross section in inches construction type rim diameter and load range and carry a light truck identifier as well. Each metric tire measurement shows both the metric tire size and the inch equivalent.
For example size 31x10 50r15 lt c indicates a 31 inch overall tire diameter a cross section section width of 10 5 inches radial construction 15 inch wheel rim diameter light truck designation and a load range of c. A tire s section width also called cross section width is the measurement of the tire s width from its inner sidewall to its outer sidewall excluding any protective ribs decorations or raised letters at the widest point. Section width following the letter s that identify the type of vehicle and or type of service for which the tire was designed the three digit numeric portion identifies the tire s section width cross section in millimeters.
The overall diameter is then the wheel diameter plus 2 sidewall measurements and divide the first number by 25 4 to calculate the width in inches. This is crucial when calculating the tire size because improper width height and aspect ratio can affect steering response traction and ride comfort. A tire s section width also called cross section width is the measurement of the tire s width from its inner sidewall to its outer sidewall excluding any protective ribs decorations or raised letters at the widest point.
Tire profile controlling the cross sectional shape tweet the image below demonstrates how the tire profile highlighted in yellow can be changed by adjusting dimension m highlighted in red which is the distance to the widest part of the tire measured from the outer diameter of the tire. A cross section of a tire. Numbers 14 and 16 are bias plies.
Number 12 indicates the radial ply. A radial tire more properly a radial ply tire is a particular design of vehicular tire.