Just got a Giant 2007 TCX frameset w/o headset and fork. I was wondering if the FSA Orbit IS headset would fit? I tried an Orbit CE I had laying around and it was too big to fit into the headtube. It def is a drop in headset though. Thanks, James

The Giant frames don't have the angled bearing seat machined into the headtube, they use a separate split insert:



I've always just used the Giant OEM headset since we're Giant dealers. There might be an aftermarket alternative headset that comes with the same bearing seats, but I don't know of one.

Thanks helicomatic, I called the local Giant dealer and they're ordering me a OEM headset.