Originally Posted by
datlas
I noticed that on my newer wheels that are “tubeless ready” that when I install a clincher tire, there is a loud SNAP (or two) at around 80-90 PSI, which I believe is the bead settling into the channel in the rim.
It’s interesting because this never happened with older (non tubeless compatible) rims. I don’t mind this, but it has caused one concern….
I notice that before the bead is snapped, the tire seems to have a small hop in it. This kinda makes sense if the bead in one section is a mm “above” the channel it gets snapped into. The concern is if I get a flat on the road and pump tire up to say 60PSI (to get home), the bead won’t be fully seated and the tire will have an annoying hop.
Anyone else notice this?
The pop is caused by the bead stretching over the bead lock ridge on the rim bed, which as the name suggests, secures the bead into proper position.
It doesn’t happen on standard clinchers because there is no bead lock ridge.
Generally, if flat, a tubeless tire will stay locked in place, so if reinflating, you can set desired pressure without having to worry about having enough pressure to seat the bead.
If you have to break the bead free to install a tube, reseating the bead could be an issue and result in a hop. If you can’t give it enough pressure to seat, manually working the tire to get the bead in place, as you might for a standard clincher, is possible.
Riding on tubed tire not fully seated is annoying, but not risky for careful riding.