have 1 bike used to mount the studded tires, on/off with weather notice, for next day.
since it only incidentally freezes some days some years, the Nokian studded tires
I got in 1991, are still fine,
though I've bought another bike more recently, that is getting the above 0C use,
So the other entire bike is freeze-up studded-tyred waiting and ready, now.