It’s never really talked about until it’s too late. Our spare tires.
I guarantee everyone of us has our original spare tire. It’s as old as your car.
You wouldn’t put 10 or 15 year tires on your car would you?
Have no fear replacements are available from tire rack in a T115/95R17 for $89. It’s slightly taller than the 105-sidewall
https://www.tirerack.com/tires/tires.jsp?tireMake=Continental&tireModel=CST+17&partnum=195MRCST17&vehicleSearch=false&fromCompare1=yes