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  1. #1
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    Concave side on an axle locknut?

    See jpeg.

    I'm assuming the concave side of the locknut is for a spacer to sit in there, with the flat side facing the drop-out?

    Any better ideas?


    Locknut.jpg

  2. #2
    Senior Member mechBgon's Avatar
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    The concave side should face the dropout. The idea is for it to "bite" better by focusing the clamping pressure, same reason some locknuts have knurled surfaces.

  3. #3
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    Quote Originally Posted by mechBgon View Post
    The concave side should face the dropout. The idea is for it to "bite" better by focusing the clamping pressure, same reason some locknuts have knurled surfaces.
    +1 Also, the concave side is beveled, which is to allow one to slide the wheel more easily into dropouts that might be spaced a tad too narrow.
    Steve

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