Bead

The tire bead ensures that the tire sits securely on the wheel. There are several steel wires in the bead to prevent the tire from coming loose from the wheel rim.

    See also:

    Summer tires
     - Optionally, tires with a maximum speed of over 149 mph (240 km/h) may have "ZR" in the size description depending on the manufacturer (e.g. 245/40 ZR 18). The service specif ...

    Definition of terms for tires andloading
    Tire ply composition and material used Describes the number of plies or the number of layers of rubber-coated fabric in the tire tread and sidewall. These are made of steel, nylon, polyester and ...

    Tachometer
    The red band in the tachometer indicates the engine's overrevving range. ! Do not drive in the overrevving range, as this could damage the engine. The fuel supply is interrupted to protect the ...