• I have paired an XT caliper with a GRX lever and can't get it to be as good as the front grx caliper. It seems that maybe, the brake pads with the cooling fins / heat sink on the grx might be of tighter tolerance. Could this make the XT caliper squeeze that little extra further?

    Any ideas how to solve this? Is it an incompatibility issue?

  • the brake pads with the cooling fins / heat sink on the grx might be of tighter tolerance.

    I haven’t read of this being the case, guess it’s possible though.

    If you look at the back part of your lever paddles, is there a small bolt up near the top, near the curve of your drops? I can’t remember if grx has one, but if there is then that bolt controls the lever travel: you could adjust it so the brake bite matches your front.

  • Ye, I played around with the reach adjustment If thats what you mean? It only comes closer to the bars though :-/

    Thanks!

    Edit: after some research I see thatShimano calls it Free Stroke Adjustment. I will have a go at this. Thanks!

    Edit2: not possible with grx600 levers.

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