• Struggling to set up my GRX 400 front mech. First time I've installed and adjusted this newer style mech with aligning the "input link" and "bracket line" for cable tension.

    Followed the Shimano dealer manual and overall it works, it shifts OK but it's not perfect.

    If riding in the big ring, going from top to top trim, the cage doesn't move. In order to use top-trim, I have to stop pedalling, click to low and then gently back to top trim.
    Any idea what the problem might be there?

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