I was doing some fork maintenance the other and noticed a strange clip that is mounted on one of the screws used to attach the caliper to fork. The pictures below show the clip in question. It really looks like the clip is designed to attach on the screw (the screw has dents, and the clip has the matching ones) ...but: I only saw it one of the screws, and only on the front brake. I didn't see any on the rear brake, nor on another bike at home that uses the same calipers and fork (unless they've been lost).

What would be the role of this clip?enter image description here

enter image description here


1 Answer 1


this manual (https://www.manualslib.com/manual/1590153/Shimano-Br-M8000.html?page=12#manual) suggests the clip is supposed to keep the bolt from coming off.

I'm not sure it is really capable to do that. But it would help noticing if the bolt became loose, because it would change position when it does.

  • Thanks, "too simple"... Simply by preventing the bolt from turning. But if it's so simple, why not have them "everywhere" (on the other bike, the bolt heads are suited for these clips) - hence the question.
    – Renaud
    Aug 17, 2022 at 11:52
  • @Renaud Likely just lost or intentionally removed. Shimano likes to be extra careful about brake bolts. Most people never have issues with them loosening.
    – MaplePanda
    Aug 17, 2022 at 22:54

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