The Fulcrum Racing 1 2-way fit is a solid wheel set, and wanted to run it with the Atom Comp (reinforced) tubeless tires. So I took off my Vittoria Corsa's, soap the beads pull Atom's on, pump them up, but.... at the pressure over 6BAR (90psi) the tires just popping out. The recommended pressure is 8BAR, and i doubt the sealant will fix that. Did anyone had that? Is that fixable?
I couldn't find any compatibility warnings the internets.

Thanks in advance.

(Apologies if this is patronising)

Your tyre is blowing off the rim at moderate pressures, right? Are you sure you have the specific Road Tubeless Atoms? Only this page:

http://www.hutchinsontires.com/en/catal ... te&clear=1

Makes it look like the Comp is a non-tubeless model.

+1. Atom Comp is clincher, not tubeless. There is an Atom Road Tubeless variant, which works well.