Combustion
raises the temperature, and thereby increases the pressure of the fixed volume of gas inside the tyre, which causes the flexible tyre walls to expand faster than the gas can escape. This pushes the tyre wall outwards, forming a seal with the wheel.
The tyre would probably need topping up afterwards, as when the gas inside cools, the pressure will decrease and the tyre will deflate.
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chart cat has an itch, Mon 2 Feb 2009, 3:34,
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