Is it necessary to replace a tire with sidewall damage?

[VonNaomi]

If only the surface rubber is scratched, replacement is not necessary. However, if the damage is deep and has affected the internal structure, then replacement is required. Classification of car tires: 1. Pneumatic tires: Robert Thomson proposed using compressed air in elastic bags to mitigate vibrations and shocks during movement. Based on this principle, John Dunlop created rubber hollow tires in 1888, and later Thomas manufactured rubber hollow tires with valve switches. 2. Solid tires: Solid tires are the opposite of pneumatic tires (hollow tires). They have a solid body, do not use cords as a skeleton, do not require inflation, and thus do not need inner tubes or airtight layers. The earliest tires were solid tires. Currently, solid tires are only used for slow-moving, high-load vehicles or machinery, as well as machinery in fixed positions.