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What is the diameter of 14-inch and 12-inch tires?

1 Answers

GavinRose

07/30/25 7:45am

14-inch and 12-inch tires have diameters of 27cm and 47cm respectively. Below is an introduction about tires: 1. Introduction: Tires are circular elastic rubber products mounted on various vehicles or machinery for ground rolling. In 1845, R·w· Thomson, a civil engineer born in Scotland, invented the pneumatic tire. 2. Specifications: Specifications are the geometric parameters and physical performance indicators of tires. Tire specifications are commonly represented by a set of numbers, where the first number indicates the tire section width and the second number indicates the rim diameter, both measured in inches. The letters or symbols in between have special meanings: "x" denotes high-pressure tires; "R" and "Z" denote radial tires; "-" denotes low-pressure tires. 3. Ply Rating: Ply rating refers to the nominal number of cord layers in the tire rubber, which may not exactly match the actual number of cord layers. It is an important indicator of tire strength. The ply rating is marked in Chinese.

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