-
My experience so far is that if all the air escapes, the tyre deforms under the loss of pressure and the seal fails. I usually end up pushing about 110 psi in, so that there's still a chance some air will still be present once I get the core back in. Just wondered if I was missing something, no biggie.
Also, why do I always end up bending my Presta cores (the bit you undo to get air in)? Am I not supposed to fully undo them?
Once the tyre is seated you then need to disconnect the hose. Hopefully the bead will remain in place. Now reinstall the valve core and pump up as normal.