hi. i just changed my bikes tires, a couple of 700 x 32c tires, knobbies for slicks. as i was inflating the tires with my floor pump, i observed that it took a considerable amount of exertion to pump the tires - more so than with my older tires of the same size. also of note, the same tubes were used between my tire change.
i'm wonder what could make it so difficult to pump, even with a floor pump. could there be some crease in the tube? or could part of the tube be stuck somewhere? also, my floor pumps gauge's meter seems like it goes haphazardly up and down - it doesn't stay at a certain number.
any advice/suggestions would be greatly appreciated!