or on the inside of the tire? On the outside a little warm water and a little finger nail action. On the inside warm water and a medium stiff bristle brush will get most of it off. However, you'll never get rid of it completely. If you intend to continue to use the tire tubeless I wouldn't clean it off anyway. You'll have to go through the sealing process all over again. If you are going back to a tubed set up, just scrub as much off as you can and let dry completely. What's left won't hurt anything, it's just dried latex.
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