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Arch (brake)
From WikiPedalia
An incorrect term for the caliper or set of cantilevers that press against the wheel rim. This term first appeared in Shimano literature. I believe that it is a result of poor translation from the Japanese. Since an "arch" is a rigid structure, it is a poor choice to describe a moving part.
The term "brake arch" does legitimately apply to the part of a suspension fork that links the sliders and contains the cable housing stop.
