Originally Posted by
wannabemekon
A further question on this (much delayed) repair: so I found an NOS shimano 600 hp-6400 to replace my original one. But the one I found has british threading (mine does not, I don't believe) and a crown race inner diameter that is 27 mm instead of 26.4 mm.
Can I assume this will not work with my fork? Or?
I don't know if the British threading will work.
If your current headset has caged bearings you can remove them and add loose balls instead. That'll often cure the indexing problem and give a lot of extended life to a headset.
Good luck and cheers