It'll do on the dirt

ALTHOUGH it is there to save space in the boot, Mazda actually describes the spare as temporary and that's the way you should think about it. It's there to get you to a tyre repairer to fix the punctured tyre and is not intended for extended use. There's no reason for concern about going down your bush tracks, but if you are concerned, perhaps you should consider buying another normal wheel and tyre and carrying that when you're going bush.