
Wheel hub chipped a small piece will not affect safety, if the wheel hub has a large gap, it will be prone to cracking to a certain extent, posing a driving safety hazard. Therefore, if the wheel hub has a large gap, it is best to repair the wheel hub. If it cannot be repaired, it is best to replace the wheel hub. The following is a partial introduction about tires: 1. Introduction: Tires are circular elastic rubber products assembled on various vehicles or machinery for ground rolling. They are usually installed on metal rims, supporting the vehicle body, cushioning external impacts, achieving contact with the road surface, and ensuring the vehicle's driving performance. 2. Required performance: Tires are often used under complex and harsh conditions, enduring various deformations, loads, forces, and high and low temperatures during driving. Therefore, they must have high load-bearing performance, traction performance, and cushioning performance. At the same time, they are also required to have high wear resistance and flex resistance, as well as low rolling resistance and heat generation.

I run a repair shop and deal with various wheel issues every day. If a small chunk is chipped off the wheel, the first thing to check is the location. If it's just on the edge and there are no cracks or deformations, slow daily driving shouldn't be a big issue. However, if the damage is at the spoke connection points or load-bearing areas, even a few millimeters of missing material can pose significant risks. Damaged aluminum alloy wheels experience internal stress imbalance and may suddenly fracture at high speeds. Last time, a car owner ignored wheel scratches, and the wheel shattered on the highway, nearly causing a rollover. I recommend immediately checking the wheel balance and roundness. If the deformation exceeds 2 millimeters, replace the wheel without hesitation—safety leaves no room for compromise.

I've been into car modifications for ten years, and I deeply understand the importance of wheels. Those seemingly minor dents are actually like planting a ticking time bomb inside the metal. Wheels bear the friction from tires and the weight of the car body, especially under the impact of bumpy roads. Once, I measured a slightly deformed wheel with a vernier caliper—the surface was only off by 0.5 millimeters, but the stress tester showed a 40% spike in peak stress. What's even scarier is that metal becomes brittle in winter's low temperatures, and the centrifugal force from high-speed cornering could tear the damaged spot at any moment. I sincerely advise you not to skimp on that thousand bucks—replace them when needed, because losing control happens in an instant.

As a driving instructor, I place special emphasis on wheel rim inspections. On average, our training vehicles suffer rim scrapes from students three to four times per week. Experience has taught me that impacts on the wheel rim edges most commonly lead to slow air leaks. Last week, Car No. 32 experienced a pressure drop from 2.5 bar to 1.8 bar due to a small chip on the rim, nearly causing a tire blowout. Don't assume minor damage is harmless - any compromise to the aluminum alloy material accelerates oxidation, leading to a dramatic loss of strength over time. When you get home, apply soapy water to the damaged area. If you see continuous bubbles forming, this confirms deformation and air leakage. In such cases, you must immediately stop driving and address the issue.

My family has been in the automotive transport business for three generations. The old man always said that wheel rim damage is like a fracture in a cast—it looks fine but the load-bearing capacity is compromised. Especially for heavy-duty trucks, if the wheel rim has a defect larger than the size of a fingernail, it absolutely must be replaced. Although passenger cars are lighter, at high speeds, a single wheel can endure over ten thousand impacts per minute. I once used an industrial endoscope to inspect the inside of a damaged wheel rim, and the fine cracks spread like a spiderweb—this kind of damage is completely invisible to the naked eye. Remember three things: check the wheel rim's true roundness, test the dynamic balance, and monitor the frequency of tire pressure loss. If any of these three show abnormalities, immediate inspection and repair are necessary.


