nick suggestion sounds better to me. id be a bit hesitant doing a standard tubeless repair on semi slick / racing compound tyre. just given how hard they have to work and the temps they see vs a regular street tyre.

Probs go to a specialist tyre shop aswell like kosteras or wheels world as i dont think your average local tyre shop would be competent to do and/or advise on this sort of thing.

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Doing it for all the wagons out there