These wheels are going to be the end of me. Got the rim tape all done, had the tires mounted and balanced and after a day they were flat. Marked the tire so I could maintain balance and removed them. Let me tell you, taking a 100/90R18 tire off a 2.15 rim is a real #$%*. After they were removed I could see that when they threw the tire on the machine it drove the bead down so far it peeled the edge of the tape off. So I retaped it with 3m 4411 tape instead of the 4412 - it is about half the thickness and a lot easier to work with. Remounted front tire and got the bead set. Remounted rear tire and the bead wasn't even close enough to use air, had to pull out the ratcheting tie down trick. Anyway, the bead is mostly set but about a 9" section of the tire is still stuck down in the groove. It seals enough that it holds air and you can hear the bubbles screaming when you spray windex on it. My question is, how high in air pressure can I go to try to make this bead pop into the seat? I'm at 70 psi, bouncing the tire on the ground, everything I can and it doesn't move.