I got a flat on my summit, so I ordered a new tube and a new Luna tire since the old one is pretty bald. I just got them in the mail, and everything was good until I realized I couldn't take the old tire off the rim. I have plastic tire levers, but they just can't get the thing off. Does everyone have this problem with the Alex rim? Do I need a special tool?
Sorry if you've already tried this, but make sure the tyre, at the opposite side of where you're working, is sitting right in the middle of the rim. That should give you a bit more to work with.