Are the Tires Airtight, And Why Are They Still Leaking?
Let us talk about tires and valves, both of which are made of rubber. There are gaps between rubber molecules, and the tire is a composite structure with steel wires and cord wiring layers and airtight layers in the middle, which are tightly combined, but there are still gaps. Besides, the tire and wheel hub are also not completely sealed. There still may have gap between rubber and metal. Finally, let’s talk about the wheels, most of the wheels are aluminum [...]