I am going tubeless! Using tubless ready rims and tires with a floor pump. The front one went on no problem. The rear one has seated, heard pinging, and holds air dry, up to 40 psi. When I add sealant it holds overnight and at high pressures, 25-35. But the moment I run my tire below 20psi the bead/rim interface leak when I push down on the tire or wiggle it from side to side. Any advice?
Using: md 40 rims Surly knards 29x3 39mm rim tape/ stans
Tried: Soaping tire bead. Wrapping tire with strap. Installing sealant (that was just a mess to clean up). Using tire levers to pre seat tire bead. Inner tube overnight. Seating tire not on ground. Letting seat overnight at 35 psi.
Here is a photo of me pressing on my tire at 15 psi using one thumb. See the soapy bubbles from air out near my thumb but a good seal everywhere else. When I put it on the ground and put some force on it it is worse. Like tons of micro burps.