How a car works

All partsBMW M4 CSLWheel assembliesFront left wheelTire › Bead

Bead

Part of Tire

What it is

Steel-wire hoop at the tire edge.

What it does

Locks the tire to the rim under pressure.

How it fails

Lube beads when mounting to avoid damage.

MaterialHigh-tensile steel wire bundle
SpecSeat pressure 3.5 bar
Bead highlighted on the car

Appears at

Front left wheelFront right wheelRear left wheelRear right wheel

Nearby