In need of some advise please.
I have a cannondale prophet which has a 1.5 steerer and cane creek headset fitted.
Just brought new tapered forks…
Now do I just need to change the top part of the headset or both?
Cheers

Just the top may even be able to get a spacer.

Just the top.
Did your headset come with a crown race?

Andrew.. Sorry I’m not sure what you mean

The crown race is a ring that slides onto the fork’s steerer tube and fits it to the lower headset bearing

Sheldon Brown

You must be new here Saxon, have a read of this http://singletrackworld.com/forum/topic/probably-a-stupid-headset-question
See also:
Weeing in shoes
Owning with bombers
Anything to do with aeroplanes and conveyor belts
Fire up the fergie
Any reference to TJ
Bringing the trail alive
and various other STW catch phrases you will come across.
.
But to answer the question, just the top.

Ok stupid question.
To be honest I have never seen a headset without a crown race.
So I wasn’t sure if you were talking about something different entirely …
Also at what relevance?

We dont know what your current fork is so if say you had a head shock that didnt require a crown race your headset wouldnt have one so youd need a bottom half to fit your new forks.

Aha got you sorry.
It’s a x fusion velvet.
That explains it….

No relavence at all, just a bit of an in-joke.