No idea. Look at the website. The OP talks about roads his wife won’t drive, not the wilds. I expect it does not cover off road (essentially they send a car, needs to be accessible)Wonder if that would work if you were at the top of Jacobs Ladder (Hayfield), deep in Gwydir Forrest or the middle of no-where on a MTB ?
Slightly off topic ( but it does involve Talc)If nobody else has suggested it I'll say: Talc is the answer; it's the best natural dry lubricant for sticky rubber ever. Sprinkle it all over the beads.
I don't think you need talc on your bum just to change a tyre.Slightly off topic ( but it does involve Talc)
Mrs Tenkay was given some really nice Talc as a birthday present a few years ago. It was from Lush and called something along the lines of " Silken Underwear"
She tells me that it is outstandingly good, and far, far better than any chamois cream / Bum Butter she has ever used.
I'll pinch some and give it a go next time I'm changing a tyre.