An emergency wheel (also known as a temporary spare tyre). An emergency wheel is a wheel that is lighter and narrower than regular wheels (to save weight and space). Emergency wheels are designed for short distances, usually 80 kilometres or less, and relatively low speeds, usually 80 km/h at most. The maximum speed an emergency wheel may be driven at should be indicated on it.

Emergency wheels should have higher air pressure than regular tyres. The recommended pressure should be indicated on the wheel and in the instruction manual.

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