spare
spare tyre BrE
spare tire AmE

He also called it a spare tyre on the automobile of government.

A spare tyre was typically carried at the rear of the vehicle.

A second spare tyre in the rear was used as a bumper.

They cost a mere eighty million dollars each, with the spare tyre and radio.

Thank goodness for my spare tyre, I can afford to lose a bit of that.

That way Smith won't be able to use his spare tyre.

If possible, carry two spare tyres (and plenty of water).

Think about taking two spare tyres and not just one to be on the safe side.

There's a spare tyre in the boot if you need it.

Find someone who has a spare tyre in his/her car.