What is the minimum tread depth required for the steering wheels of trucks?
2 Answers
The tread depth of the steering wheels of trucks should be no less than 3.2 millimeters. The tread depth of the steering wheels of trucks should be no less than 3.2 millimeters. Generally, regardless of mileage, tires can be used for about 6-8 years based on the service life, but this should be judged according to actual conditions, such as driving habits, road conditions, frequency of use, and whether the tires have suffered impacts, all of which can significantly affect the service life of the tires. Special considerations for truck steering wheels: Even if the tires have not been used, they must be replaced once they reach the service life due to aging factors. Tire aging greatly increases the risk of blowouts, thereby raising the danger coefficient during driving. Besides monitoring the wear level of the tread patterns, tire pressure is also a crucial indicator. Both overinflation and underinflation can adversely affect the tire's lifespan and pose safety risks. For instance, overinflated tires driven under high temperatures and at high speeds increase the likelihood of blowouts. Tire pressure is closely related to vehicle performance, directly impacting ride comfort, fuel consumption, and other aspects.
As an experienced truck mechanic, I can tell you that the tread depth of the steering tires on a truck must be at least 1.6 millimeters. This is a major safety issue and cannot be taken lightly. The steering tires are the front tires, and if the tread is too shallow, they can easily skid during turns, and the braking distance increases in rainy conditions—if an accident happens, it's all over. When I inspect for my clients, I always use a tread depth gauge to measure, and if it's below 1.6mm, the tires need to be replaced immediately. National regulations also state this—the GB7258 standard clearly specifies 1.6mm, and if you're caught driving with treads below this limit, you'll be fined by traffic police. Regular inspections are crucial; I recommend checking every three months—it saves money and gives peace of mind. Steering tires are especially important as they are the main force controlling direction. When they wear out quickly, take preventive measures early—don't wait until a blowout to regret it.
