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amey
@ewanmac
Edit, sorry, I mis-typed... the lower headset bearing does not have a 90º base, it has more of a 45º base that matches the fork. However, even so, the contact point between the lower headset bearing and the fork seems very small.
Yes, I think a crown race is what I have on my other forks but my complete lack of understanding about headsets means that I don't know if there should be one here?