The tire side and inner edge are damaged.
Tire side damage: some car owners have poor sense of position. When parking, they often let the sidewall rub against the curb, which will wear the sidewall over time.
Damage to the inner edge of the tire: The damage to the inner edge of the tire is mostly caused by operational errors when disassembling and assembling the tire, which generally occurs in the process of replacing the tire with a new one or installing the tire after repairing the tire.
Damage to the side and inner edge of the tire will cause hidden air leakage of the tire, which will have a high risk of puncture.
Inspection method F: sidewall damage can be directly observed, and cracking and bulging will occur in severe cases. As long as this happens, it is necessary to replace the tires as soon as possible to avoid the occurrence of puncture accidents.
Whether the inner edge of the tire is damaged or not can only be checked after the tire is dismantled, so the owner should carefully supervise when disassembling the tire in the repair shop.
A foreign body is stuck in the tire.
Stabbing a foreign body is the most common tire injury. Foreign objects that easily pierce the tire include nails, screws, iron wires, glass fragments, sharp stones, etc.
Among these foreign objects, nails and screws are the most likely to puncture the tire, causing the tire to leak.
Inspection method F: There are foreign objects stuck on the tire. We can see them by carefully observing the tire surface. If the place where the foreign body is stuck is hidden, we can also sprinkle soapy water on the tire surface to find the place where the bubbles come out.
Hub rupture
It is rare that the wheel hub is broken. When the wheel hub breaks, the gas inside the vacuum tire will leak from the cracks, and the tiny cracks will also become the hidden danger of the wheel hub breaking. It can be said that although this situation is rare, it is extremely dangerous.
Inspection method: it is necessary to remove the wheel during inspection, and then observe whether there are cracks on the surface and inner wall of the hub. If the hub has cracks, it should be replaced in time.