Originally Posted by
1ply
the front however possibly due to a rotor neck (you can spin the handlebars 360°) is impossible to lock. This greatly impedes her stopping ability - how do I fix this?
It would help to see a photo of what you're calling a "rotor neck". If the bike is equipped with a so-called "detangler" device, then have a bike shop remove that device and run cable straight to the brake.
Another good idea is to replace the brake pads. By some Jagwire- or Koolstop-brand pads, or some other reputable brand. Pop those on. I've had people think I've worked miracles on their brakes when all I've done is to put on decent pads.