Im a college student that just got a bike from Facebook marketplace. The guy said everything including the light, gear shifts, and brakes work great. Come to find only the front brakes work and everything else is broken. When I took a closer look I saw these strange little bits and was wondering if they're related to these functions in any way? Last time I rode a bike I was maybe 13 and have zero experience in anything mechanical. Please help:) This bikes adorable and Id love to fix her up.
tldr: need help identifying these. any advice on how to fix this is appreciated!
by Successful-Data-715