The SLT is chromed everywhere, has horizontal dropouts, and uses whatever open cam skewers come with Origin8 hubs. I'm somewhat surprised that I've never had slippage with them, but then again I put out like 700w max on a good day.
However, my MTB is QR in the rear and an open-cam skewer doesn't cut it so it's got a big and beefy steel internal cam skewer.