The headset on my Giant XTC needs replacing but i’m really struggling to find the size that I need. Anyone got any ideas?
It’s this model:

Giant XTC 3.5 2007

I’ve tried calling Giant but their phone line just goes to answerphone and states that they are shut for xmas. They don’t appear to have a twitter account either.
Went into my LBS to ask but the best they can come up with is that I need to remove the old one and measure the bearing size which is a possibility but when I remove the old one, I don’t want to be bikeless whilst I wait for a new one to be delivered.

I know it’s integrated but can anyone point me in the right direction or supply me with a link to the appropriate size?

Giant use a lot of zero stack headsets on there bikes
But I can’t be sure with yours.
If the bearings in your are sealed just pop one out as take it with you
A lot of shops will have them on the shelf so you won’t be with out your bike

Thanks. I guess that could be my only option really. I was kind of hoping someone on here might have the same bike and hook me up with the exact size.