This bike has an Acros Aix 03 headset which is IS 52 lower
Do I just need the 1 1/8 version of this
http://www.bike-components.de/products/language/en/info/p29429_Gabelkonus-AiX-03---AiX-22---Aix-24-.html
To use a non-tapered steerer fork?
I cant really tell from that photo. But I can tell you that this race from Cane Creek did exactly that in my Nerve (with the original Acros bearing). It's got an extra bit of sealing too in comparison the the original.
http://www.jejamescycles.co.uk/cane-creek-crown-race-15-to-1-1-8-conv-xxc-id57040.html
thanks. good to know. seems there is a superstar part that should also be a match for the Acros headset
Further research has uncovered:
1 There is an Acros part but it can be tricky to get hold of
2 The Superstar part is theoretically the same but somehow isn't the same and it results in a loose headset
3 Hope HS136 should work for any headset with the original crown race