How does a single pivot side-pull caliper bicycle brake work?
engineering.stackexchange.com
engineering.stackexchange.com
https://engineering.stackexchange.com/questions/16603/how-do...
I'm surprised it works but it is a testimony to the high quality of modern manufacturing and design that you can transfer force "around corners" thru a wire inside a tube (likely made of a wire-plastic composite). A bicycle cable is a form of Bowden cable: