If your vehicle doesn't come with a spare wheel, it will usually either be running on a type of tyre called 'run-flats' or it will come with a tube of sealant which can be used to get you going to the next service station.
If this is the case, we'll still provide assistance. However, if your vehicle was supposed to have a serviceable spare and you don't have it, we will decline cover.
Motorbikes are covered because it's just not practical for us to make you carry a spare around your neck!