I have bought two pathfinder 2bliss tires but one of them seems not to want to seal completely and loses pressure in a couple of hours.
I sprayed them with soapy water in the picture and all the white dots are air bubbles.
I'm using stans sealant, pumped them up to 10 psi above what i ride and given them the shake/dance and put them on their side of a bucket to fix the leak but doesn't seem to seal anyway and just keeps leaking.
The holes are very tiny and leaks slowly so you can't feel or hear the leaks.
Any tips?
by rasmus9311
8 Comments
that’s pretty normal, that tire has very thin sidewalls that are not completely air-tight so they need to soak up some sealant to seal properly. Just leave the wheel like that for a few hours, rotate the wheel onto the other side and it should all seal up and not leak anymore. Wipe off the stuff that comes out.
I have bought two pathfinder 2bliss tires but one of them seems not to want to seal completely and loses pressure in a couple of hours.
I sprayed them with soapy water in the picture and all the white dots are air bubbles.
I’m using stans sealant, pumped them up to 10 psi above what i ride and given them the shake/dance and put them on their side of a bucket to fix the leak but doesn’t seem to seal anyway and just keeps leaking.
The holes are very tiny and leaks slowly so you can’t feel or hear the leaks.
Any tips?
Weeping happens, but I haven’t seen that much in the couple sets of pathfinder pros I’ve had.
It seems the transparent sidewall has this problem, occasionally.
I had a similar issue with the Pathfinder Pro and also Stan’s albeit not that severe. I had some weeping through the sidewalls but then once I let that weeping dry up they’ve held air just fine. If I was in your situation, I would dry the soapy water, keep the air pressure up in them and let the weeping happen and then let the sealant dry to seal the leakage. If that doesn’t work then I would do as another poster said and contact either the retailer or specialized for warranty support.
I had this problem with some Rene Herse tires, also with thin/”SuPpLe” sidewalls. What really helped was finally reading and following RH’s directions for how to really work the sealant into all the crevices systematically: [https://www.renehersecycles.com/how-to-set-up-tubeless-tires/](https://www.renehersecycles.com/how-to-set-up-tubeless-tires/)
>Hold the wheel steady (left), so the sealant collects at the bottom. Quickly move the wheel upward (center). Centrifugal force will keep the sealant right under the tire tread. Hold the wheel over your head (right), still slightly tilted away from you. Now the sealant runs downward, covers the sidewall, and seeps into the gap between tire and rim.
>Rotate the wheel a few degrees and repeat. (Start with the valve at the bottom, so you have a reference point.) Once you’ve worked all the way around the tire, turn the wheel around, and repeat on the other side. Now your tire is ready to ride. Go for a ride immediately, even if it’s just a few times around the block. This will help distribute the sealant further.
This took me about 5-10 minutes and my tire immediately stopped slowly losing air. Hopefully it helps you too!
Good enough to ride
I’ve found that riding is the best way to distribute sealant. You don’t have to go hit the rowdy gnarly stuff (and probably shouldn’t if you are starting +10psi over nominal) but that has been the best way to hold pressure after a fresh install. If it’s still leaking, try to warranty it. Thin sidewall XC tires are a blast when they work but don’t take much to fail.