What should be the minimum tread depth for the steering wheel tires of a truck?
2 Answers
The tread depth of the steering wheel tires for a truck must not be less than 3.2 millimeters. Below is relevant information about tires: 1. Introduction: Automotive tires are one of the crucial components of a vehicle, directly in contact with the road surface. Together with the vehicle's suspension, they help absorb shocks during driving, ensuring good ride comfort and smooth operation; they also ensure excellent adhesion between the wheels and the road surface, enhance the vehicle's traction, braking, and off-road capabilities, and bear the vehicle's weight. The significant role tires play in vehicles is increasingly being recognized. 2. Precautions: Raise awareness about tire safety. Regularly inspect tires, especially before highway driving, conducting thorough and detailed checks. Beyond tire pressure, observe the tire sidewalls for cracks and the tread wear condition, promptly addressing any potential hazards. Regularly correct wheel balance. Excessive wheel imbalance can cause high-frequency oscillations during high-speed driving, leading to uneven tire wear and compromising driving safety. After tire repairs, dynamic balance testing and adjustment should be performed, with the single-side dynamic balance test value not exceeding 40 grams. Periodically rotate tires. To ensure even wear across all tires on the same vehicle, perform tire rotation every 5,000 kilometers and a four-wheel alignment every 5,000 to 10,000 kilometers to prevent abnormal excessive wear. Do not install tires of different models or with significant differences in wear on the same axle.
I remember when I was driving a truck, the tread depth of the steering tires had to be no less than 1.6 millimeters. Below that limit, they would slip in the rain, making it hard to control the direction. Once, when my treads were shallow, I almost lost control during a high-speed turn—thankfully, I reacted quickly. Since then, I’ve checked monthly with a coin: if Lincoln’s head is fully visible when inserted into the tread, it’s time to replace the tires. You can’t cut corners on safety—deep treads channel water away, ensuring more stable braking. Long-haul drivers need to be especially vigilant; regular maintenance can prevent blowouts, protecting both cargo and pedestrians. When replacing tires, choose high-quality brands to ensure strong grip.
