I have a Specialized Rockhopper that is missing the brakes. It has cantilever brakes smooth post. I have the parts but don't know what order the washers go in. Does the concave part go against the brake pad and nut? Or against the brake arm?

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    Does this answer your question? Orders of the washers on threaded-stud brake shoes
    – DavidW
    Feb 21 at 14:44
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    @DavidW I've flagged it as a duplicate of that question as well, but I've retracted my flag (or I intended to do so by removing the auto-comment). The duplicate seems about brakes with a threaded stud, while the question asker focusses on brakes with a smooth post. Feb 21 at 15:37

1 Answer 1


Park Tool has an instruction video on mounting/adjusting cantilever smooth post brakes. At 6:26 into the video they show one brake arm with the pads installed, with the washers clearly visible:

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The concave washers seem to go agains the brake arm.

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