More in hope than expectation, I wiped the mass of road dirt off the nut at the damper end, to find is was a large dollop of dust-encrusted copper slip. Hexagon key in the centre of the stud, ratchet spanner on the nut, quick tug and it undid like it had been fitted yesterday.

Mildly impressed, I tried the same at the a/r bar end, it was just as easy.

Like an F1 pitstop it was.....
Amazingly enough, another half hour had the wheels swapped over, (for some with tread) and the handbrake holding firmly on 5 clicks.

Seems you can't lose them all. I commend the copper slip initiative to the house.