Tyre Bead
The tyre bead is the reinforced inner edge of a tyre that sits on the wheel rim and seals the air in tubeless tyres.
What is Tyre Bead?
It contains steel wire bundles for strength. The bead must seat fully on the rim when the tyre is fitted. Corrosion on the rim can cause slow leaks at the bead. A bead seater or air blast may be needed to seat stubborn tyres.
How it works
Air pressure presses the bead against the rim flange, creating an airtight seal.
Why it matters for your car
A damaged bead makes the tyre unsafe. Use proper mounting lubricant and machines to avoid bead damage.
Other terms
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