Specialized Roubiax headset size

I have a 2008 S works Roubiax frame and fork i just purchased, It didn't come with a headset. I'm replacing a 2007 Giant TCR C0 frame, so i thought i'd pull the headset out of that and use it on the specialized (both being 1 1/8th intergrated), i assumed they would all be the same size.

The bottom appears to fit fine, but the top 'cap/dustcover' is sitting too high off the headtube. The bearings also appear to seat fine...

Is there different size intergrated headsets?

I was looking to purchase a Campag record intergrated headset, but now i'm concerned it may not fit.

Any help/insight would be appreciated.

There are different sizes and different standards. Your best bet is to email Giant or call tech support.

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Bearing should have a camfered side, that goes toward the headtube(pointed down on the top, pointed up on the bottom). I doubt the Campagnolo will fit but it may. Along with so much else, headsets are becoming unique to the frame/fork/manufacturer.