Is it bad if you keep on swapping tires on the same rim? Because I want to buy some slick tires for my giant yukon bike, so when i go on club road rides it'll be easier than on my mountain bike tires. Will the tires eventually start to stretch or what? Will the rim get bent? I haven't actually tried to pull the tire off and put it back on yet. Im looking for slick or semi- slick tires for good smooth road riding.