AO Platinum Member
Join Date: Feb 2002
Location: The land that Time forgot
That shrieking could be:
1) Worn Pads - they run out of "asbestos-free" and the metal backing plate becomes the friction surface. When that gets too thin the brake pad falls out of the caliper.
2) Glazed pads. If you tart around town too much and brake too gently the surface of the pad gets "burnt" and goes shiny. A good session on your favourite road will wear off the glazed section, otherwise it's new pads time.
3) Sticking slider pins (most likely). The pins seize up with heat/dust/grit/rain/salt and then the brake pads are slow to release or don't disengage fully. You get a squealing as you get localised glazing (as above). Your pads will wear out and/or the wheel hubs gets so hot from the friction that the grease in your wheel bearings melts and you knack them.
The solution would be a strip/clean/reassemble. Use new pins if you can get them.
No bullets for Chaingun..