I recently bought a new set of tires and am going to have them mounted soon. Whoever the previous owner was they put a new tire on the rear right wheel and left all the others, including the spare bald. Since I'm cheap and didn't buy a 5th tire for the spare, I want to keep that one good tire as a spare and use my spare on the rear right.
But here is what is stopping me from doing that. I don't know what it is that is on the wheel or how to get it off. Any ideas as to what its from or how to get it off?