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What is the minimum tread depth required for the steering wheels of trucks?

1 Answers

DelRhett

07/30/25 5:57am

The tread depth of the steering wheels of trucks should be no less than 3.2 millimeters. Here is some additional information: 1. National standards: According to national standards, the wear limit for radial tires used in passenger cars is 1.6mm, while for trucks and buses, it is 2.0mm. Therefore, when the tread of a passenger car wears down to 1.6mm, it must be replaced, and for trucks and buses, the tires must be replaced when the tread depth reaches 2.0mm. 2. Precautions: In addition to paying attention to the wear of the tire tread, tire pressure is also an important indicator. Both excessively high and low tire pressure can affect the lifespan of the tires and pose safety hazards. For example, driving with excessively high tire pressure under high temperature and high-speed conditions can increase the risk of tire blowouts.

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