My car has different tire sizes on the front and back wheels. Can the spare tire still be used for both the front and rear?

Yes, this is what is commonly referred to as staggered tire sizing. We have carefully designed the spare for vehicle models with staggered sizes so that it can be used on both front and back without issue.

Vehicles with staggered tire sizes from front to back typically maintain the same or a similar overall rolling diameter across all four tires. However, some models do exhibit differences in tire diameter between the front and rear. Rest assured that for these vehicles, the tire size used on the Modern Spare will be suitable for that model and normal usage.