Is there a valid reason to carry the extra weight of spare tire? Will roadside assistance show up with tire mounted to wheel and then change it? There is no way I could change it myself.
I carry a full mounted spare. some people carry a tire only. the reason I carry one is because I don't want to pay $500 for a tire that may not even match. or wait for them to change it. I let the come and change my spare and I get the other one fixed as soon as I can.