What should be the minimum tread depth for the non-steering wheels of a truck?

[DelMarcus]

The tread depth for the non-steering wheels of a truck should be at least 1.6 millimeters. Below is some relevant information about tires: 1. Tire Introduction: Tires are the only components of a car that come into contact with the ground. Some car owners only replace the tires on the drive wheels when changing tires. For example, some front-wheel-drive car owners only replace the two front tires, while some rear-wheel-drive car owners only replace the two rear tires. In fact, this practice is acceptable. 2. Tire Aging: Tires are made of rubber and will age over time with prolonged use. It is recommended that car owners replace their tires every four years, even if the mileage is low during that period. This is because tires can also age when left unused for extended periods, so it's important to check the production date when purchasing new tires.

[OLevi]

I'm a veteran truck driver with nearly 20 years of experience. The tread depth of non-steering tires must be no less than 1.6mm - this is no trivial matter. Last time I was on a long haul when the depth dropped below 1.5mm, I almost skidded off the road in the rain - scared me half to death. Make it a habit to check with a depth gauge every month, and replace tires irregularly to save money while staying safe. The heavily worn areas tend to flatten out - replacing too early is wasteful, but too shallow is more dangerous. So remember this number - it's about both safety and efficiency. When new drivers ask me what to do, I tell them to develop the habit - just buy a simple tool, it's not worth skimping on that.

[LaMalia]

Having worked in repair shops for many years, I know that the tread depth of non-steering tires on trucks should be maintained at least above 1.6mm. Worn treads can easily lead to skidding or blowouts, especially in rainy conditions. I often advise customers to use a one-yuan coin for a quick check: insert it into the tread—if the coin's edge is visible, the tread is too shallow. Don’t underestimate this rule; it can extend tire life by tens of thousands of kilometers. Just because the wheels don’t steer doesn’t mean they can be ignored. The entire vehicle requires regular maintenance, or repairs will cost more later. I’ve seen many drivers focus only on the steering wheels while neglecting others, compromising overall safety. A simple rule of thumb: inspect tires two to three times a year. The tools are inexpensive, and it saves both hassle and money.

[MadelineMarie]

Having focused on automotive safety for so many years, the tread depth of non-steering wheels on trucks must be greater than or equal to 1.6 millimeters. This is a regulatory standard—falling below this value is a violation and could result in fines or accidents. Think about it: shallow treads mean poor water drainage, significantly increasing the risk of losing control in rainy conditions. I often remind my friends not to just focus on driving and maintenance; taking two minutes to measure can ensure safety. Using a depth gauge in daily life can prevent major issues. Safety first—this rule is simple but crucial, so don’t underestimate it.

[VanKarter]

As an average car owner, I used to try to save money by running my tires until they were worn thin. Later, I failed a tire inspection and learned that even non-steering tires must have a tread depth of at least 1.6mm to pass. Otherwise, it's unsafe or won't pass annual inspections. Now I check with a depth gauge every quarter and replace them when they get shallow - it's actually more economical in the long run. I learned from my mistake that these rules don't just protect the tires but extend the vehicle's lifespan. When new owners ask me, I tell them to download tutorials online to learn how to check - don't wait until something happens to regret it. Experience shows that saving small money might cost you big money.

[WestonDella]

From an environmental perspective, replacing truck tires prematurely when their tread depth is insufficient leads to resource wastage. Even for non-steering wheels, the tread depth should be no less than 1.6 millimeters, as this slows down tread wear and allows the tires to last an additional one or two years. Insufficient tread depth not only increases risks but also adds to the environmental burden of waste tires. Through practical experience, I've found that regularly measuring tread depth with a depth gauge costs nothing yet aids in ecological conservation. Developing a habit of self-inspection and sharing this practice with fellow drivers can collectively reduce our carbon footprint. A simple rule with profound implications—protecting both vehicles and the environment.