So these last two tube changes I've done on my rear tire I noticed something odd, no matter how much it's inflated (I keep them kind of under for impact absorption) but no matter how inflated, as soon as I put weight on the bike, they hit the ground as if they're flat, and when i compare them to my other wheel, the gap between the rim and tire isn't as big, as on the back and I don't understand what's wrong. I've switched out through both Cult and Odyssey tubes, but no clue.
by Jake10014