Wowser, I have a lot to learn about bikes I guess. Thanks very much for the quick reply.
Given the
specs (I realized subsequently that I have the 2007 model) say "VP AheadSet, 1-1/8" threadless" for the headset then it is as you describe, I guess.
If' I'd have known that when I bought it, I wouldn't have done.
So could you tell me what to Google for?