Is it bad to change tyres too often?
Backstory: I've got 2 sets of tyres for my MTB, a fairly knobbly set for offroad and one that's got a better centre profile for on-road (because 90% of my MTB time is cycling on smooth ground to get to the rough stuff). I've only got 1 set of wheels.
Will I do any damage to my tyres if I swap them whenever I want to go back to the knobbly ones for a pure offroad trip?