hey bros my gf just got an ebike and it has mechanical disc brakes. they were rubbing and super mushy so i thought id be cool and fix them for her. ive never had a bike with disc brakes before

anyways the pads are good and the rotor is straight. i got them to stop rubbing bu adjusting the caliper mounts but theyre still reallt soft. like pull all the way to the handlebar soft

how the fuck do i get more tension on this cable? when i pull on it super hard with pliers it has no give whatsoever. housing is good and cable moves freely within it

dont say barrel adjusters they do literally nothing