well, this weekend i put on the bell tires. eventually got them seated. i inflated to 60 pounds, and on each, there was a spot near a ding on the rim where it started coming up. so, i took out about 2/3 of the air, squeezed tire back in all around, and reinflated.

they're holding now at 60 -- i'm not inflating them higher anyway, because the roads around here are none too smooth.