wesmamyke

No experience, but I'd be hesitant to use a bead jack on a carbon rim. Puts a pretty good amount of force right on the edge, sounds like trouble.

wschruba

They do indeed work with both carbon rims and tubeless tires, but like all tools, can be dangerous/damaging in the wrong hands.

You don't need to use a bead jack to break a carbon rim, after all.

For what it's worth, it isn't meant to be used to force a bead over the sidewall, but to aid in proper seating--you still need to pinch the beads into the center of the rim, etc, or you put quite high stress on the rim.

velocentrik

Var makes great bike tools

JohnDThompson 

I can't think of any reason why the Kool-Stop bead jack wouldn't work with carbon fiber rims or tubeless tires.