Originally Posted by cudak888

74 Super Course = stamped dropouts.

The stamped DO's on the Super Course are narrower than most forged dropouts. You might find that a few Q/R axles - depending on the tolerances they were designed for - might stick out from the axle locknuts just enough that the cam and adjuster won't be able to bite onto the dropout without bottoming out on the axle as well.

Check for this issue; if it is the case, install spacers of equal width (1mm/ea ought to do it) on each side, or file the axle on both sides until the cam bottoms out correctly.

Another thing - unlikely, but possible: Campagnolo Triomphe skewers are notorious for having very little bite, even on paint or bare steel. The cam and adjuster are quite small, AND squared off. Form over function in it's worst form.

That said, Triomphe skewers aren't the only slippery ones out there. If your problem is not related to axle length, just change the skewer for something that has a gripper groove pattern and try that.

-Kurt