• I'm fucked if I can get my g-ones to hold pressure. I'm still building the bike so there's no sealant in there, but I rather thought they should seal without it- hopelessly naive?

  • I've never had a tyre hold pressure for more than half an hour without sealant. Even if it pops onto the rim, it'll still leak pressure until the sealant forms a layer on the tyre bead.

  • I've got tires holding pressure with no sealant overnight. Some combinations just work

  • I've never had a tyre hold pressure for more than half an hour without sealant

    I've had UST tyres on UST rims hold pressure for months without sealant. I think there might be a clue in there somewhere :)

  • My tyre is still up from whenever I fitted it in this thread. No sealant yet.

    2-3 weeks ago.

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