• ok, many thanks for those suggestions.

    after a surprisingly long time i think i have now convinced myself that no amount of fondling the tyre bead followed by manic pumping is going to sort this.

    so, choice between obtaining one of those high flow devices, or just sticking a goddam tube in it and leaving my tubeless conversion for another day / month /year.

  • or just sticking a goddam tube in it and leaving my tubeless conversion for another day / month /year

    If you use a tube to get it seated for the first time and then dismount only one bead to get the tube out, you may find you can get the tubeless up and running this weekend.

    It's all a bit random, my first few sets went up and stayed up with no sealant and just a normal track pump, but my last lot took all the finagling in the world, and that was UST tyres on UST rims, none of your fake stuff.

  • so, choice between obtaining one of those high flow devices, or just sticking a goddam tube in it and leaving my tubeless conversion for another day / month /year.

    co2 cartridges are another - somewhat wasteful - option.

    I usually find I can tell how easily a tyre is going to mount by how tough it is to get it on the rim. If it was a stress to get it on, usually it will go up first time, unless something is very wrong, like the valve stem sitting just outside the tyre bead.

    My floor pump of fifteen years died recently, and @Doctor_Cake got me one of the Bontranger charger pumps. It's great :)

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