Hi there.
I just bought flat mount adapters for an old SI style frame I am building up. In the package of each adapter I found two of these. Can anyone tell me what they are, and do I need them? I looked at another bike I have with the same style mounts but I don't see them anywhere on there.
Thanks in advance
by gardekan
4 Comments
Caliper safety clips. Not essential.
Grabage i trow them in the bin everytime i see them
You may notice that the bolts that attach the disc calipers to the frame (or adapter) have ridges that run vertically along the side. The little collars in your photo are pressed onto the bolt heads after they’re screwed in completely and they grab the ridges on the bolt head to prevent it from rotating and loosening (theoretically). The reason you may not have seen them on other models is bcause they’re not absolutely necessary, especially if the bolts are otherwise secured with loctite (as most brake bolts will be).
They go around the bolt head of the caliper bolts to stop them from loosening. They aren’t really necessary to be honest.