I recently purchased a pair of new wheels and decided to mount on them a pair tubeless ready tires that I had in my stock — the tires are one year old but barely used (about 100km when I bought them, with air chambers — I unmounted them after and kept them). The tubeless part of the install went well.
I noticed that I was loosing about 2 bars/30psi of pressure (from 4 bars/60psi) in a few hours. The tires seem properly seated then I rode 5km on gravel rough gravel to spread the sealant. I searched online and found the trick of untightening the valve, but the result was the same. Then I sprayed some soapy water and saw small bubbles forming everywhere, clearly showing that the tires themselves are permeable.
So I was wondering:
- is it possible that given that I used the tires with tubes, the tubes have a bit worn out the inside of the tire, which would make them more permeable - in 100km, that would seem very short?
- the tires are tubeless ready, not tubeless: from I understood, I should expect some leaks, that should compensated by the sealant (I added 45ml of sealant in each wheel). When I shake the wheel, I don't hear anything, like if all the sealant have been consumed (in 24h), is it possible?
- is adding more sealant the solution? If yes, how much and what is the best way to spread it?