• the only difference here is the integrated crown race on the salsa fork.

    I suspect that's your problem, and that the integrated crown race in the fork is designed to be used with standard IS52/40 headset bearing or a cup using a standard IS52/40 bearing rather than the proprietary bearings in CK headsets.

  • Ahhh, bugger. Never realised the CK gubbins were proprietary.

    Oh well, guess I’ll have to try and return the forks and source a replacement.

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