Talking about challenges,
since I have some spare tires, which are run down and have to be replaced anyway, I tried a (for me) new method to get them off its rim.
-choice of weapons were,..
my workshop vice
my workshop kneeling board
To get this tough old rubber off its rim, it was pinched into my vice pretty hard.
But make sure the vice-grips are not biting into your rim, they just lurking for. It let go eventually..
And, of course this rubber does not have the tendency to leave both of its beads voluntarely, you have to apply brutal step two.
Using the board and all your bodies weight..
YES, it leaves its seat hesitantely.
Taking off requires some tyre-irons and brute force but also some consideration to keep your brims unharmed. I used some thick leather between rim and lever. Went without splitted teeth, broken eyeglasses and swearing.
Having it off, made a brake-discs service and rim polishing easy.
Have a nice Sunday from Italy.