"Chirping" brakes, Stoker trails

pothole seeker
pothole seeker Posts: 87
edited April 2008 in MTB workshop & tech
Hi,

I'm new to disks but something does sound funny with my brakes.

I've gor Hayes stoker trails on my Trance X2.

They have bed in after a few rides, fantastic power and control. They have however started making a chirping noise, especially the rear.

It really sounds like a chirping noise, and the interval between chirps is shorter or longer depending if you are going faster or slower.

I've looked at the alignment, made it a small bit better than the shop did, there is a slight gap between each pad and the rotor and no rubbing when you spin the wheels.

Everything is tight, so it's not that. Any chance that there is something up with the pads or the rotors?

Cheers

Comments

  • nicklouse
    nicklouse Posts: 50,673
    brakes can make a noise like that as the disc is not flat and smooth. It has holes in it. the Old Hope wavy rotors made a nice noise.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • pothole seeker
    pothole seeker Posts: 87
    Hey,

    thought it would be a more consistent noice rather than a chirping noise.

    The Hayes rotors are drilled like http://www.hayesdiscbrake.com/stroker/s ... aliper.jpg
  • pete236
    pete236 Posts: 204
    It could be a slightly warped rotor just brushing a pad which makes it rub slightly on the piston in the caliper. Try removing the pads and putting a smear of Copper Slip over the back of each pad. Be very careful not to get any on the braking surface of the pads though. It might not cure the squeak but at least the pads won't seize to the pistons!
    All the best, Pete.
    One fine day in the middle of the night, two dead men got up to fight. Back to back they faced each other, drew their swords and shot each other.
  • nicklouse
    nicklouse Posts: 50,673
    Pete236 he says
    I've looked at the alignment, made it a small bit better than the shop did, there is a slight gap between each pad and the rotor and no rubbing when you spin the wheels.

    so i think a warped disc is out.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • god1406
    god1406 Posts: 554
    my Hayes 9's 'chirp'.

    Although I would never have thought to describe the noise with that word, that's exactly what it is!
    Rocky Ridge

    Stuff
  • pete236
    pete236 Posts: 204
    nicklouse wrote:
    Pete236 he says
    I've looked at the alignment, made it a small bit better than the shop did, there is a slight gap between each pad and the rotor and no rubbing when you spin the wheels.

    so i think a warped disc is out.

    True, I didn't read the post carefully enough. The copper slip still stands though!
    One fine day in the middle of the night, two dead men got up to fight. Back to back they faced each other, drew their swords and shot each other.
  • god1406
    god1406 Posts: 554
    You can keep your copper slips.

    I'm more of a cotton man, myself :wink:
    Rocky Ridge

    Stuff
  • smitty
    smitty Posts: 125
    ive had the same proplem with the stroker carbon 7s just got used to it thought it might have been the pads but seems to be the pads touching the disc helped when i pushed the pistons back in

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