I have a 2009 giant reign x, which has a semi integrated headset, designed for 1 1/8 forks.

Is it possible to fit a tapered fork, with a headset that has an external cup on the bottom?

I’ve been having a look on the net and cannot find a definitive answer.

Yes, superstar and hope sell them, it’s the 44mm id external bottom cup ones, not to be confused by the 44mm tapered ones that use a 44 mm semi integrated top and 1.5 bottom..

Do works components do an angleset that would fit?

No idea tbh..

I’d be surprised, the tapered region of the fork is longer than the bottom cup of the headset, I can’t see how it would work, though I’m far from an expert and would happily stand corrected

My frame is like this:

Does it matter if the headtube is only 44mm at the top and the bottom or does it need to be the whole headtube?

This might help – think it needs to be 44mm the whole way up or you won’t get the taper in fully

I am guessing this would work with a 2010 era Zesty? Just curious rather than any particular plan.