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once seated bead stays in place
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^^Bead stays locked in place, in theory.
It does, you can tell when you pumped up a normal tyres + tube on a tubeless rims that created an almighty crack sound as the tyres bead pop into the rims wall.
Even when fully deflated, you have to really push the bead off the wall to gain access, again creating a loud crack.
Actually thinking about it, you'd know it's a decent tubeless rims when it crack like that.
dancing james
edscoble
@Dammit
^^Bead stays locked in place, in theory - I'll need others to chime in here as I've not experienced a catastrophic puncture (i.e. one that is noticeable) and can't therefore speak from personal experience of what happens.
But- going with what I understand, the beads on either side stay locked in, you punch the plug through the hole from the outside, reinflate.
Think car and/or motorcycle tyre rather than bike tyre.
EDIT what Sumo said.