What parts does a tire consist of?

A tire usually consists of three parts: outer tire, inner tube and cushion belt. There are also those that don't need inner tubes, and the inner layer of the carcass has a rubber layer with good air tightness, which requires special rims. Tire structures all over the world are developing in the direction of tubeless, radial structure, flattening (small aspect ratio of tire section) and lightweight.

The outer tire consists of carcass, buffer layer (or belt layer), tread, sidewall and bead. The cross section of a tire can be divided into several independent regions: crown region, shoulder region (tread gradient), bending region (sidewall region), reinforcement region and bead region.

Extended data

Tire classification:

1. Structure classification: it can be divided into radial tires and bias tires.

2. Pattern classification: it can be divided into striped pattern, transverse pattern tire, mixed pattern tire and cross-country pattern tire.

3. Size classification: it can be divided into full-size spare tire and non-full-size spare tire.

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