break disc noise

nj2333
nj2333 Posts: 23
edited July 2008 in MTB workshop & tech
Hi,
just bought a new bike - stumpjumper took it out, and then noticed that when i was cleaning it - a slight noise coming from brake discs as i rotated wheel freely - should i be worried about this? - if so what would someone recommend me to do. novice rider.

kind regards,
Nick

Comments

  • nicklouse
    nicklouse Posts: 50,673
    was the noise with or without the brake applied?

    what brakes?

    and dont worry about it in 99.9% of the time.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • nj2333
    nj2333 Posts: 23
    Hi Nick,

    the noise - very sligh scraping noise was without the brakes applied.
    i noticed that even just after riding the bike for the first time, just spining the back wheel - you can see it has a very very slight wobble..only after 1 ride.
    nick
  • nicklouse
    nicklouse Posts: 50,673
    dont worry about it. but if it is still there when it goes back for the 6 week service mention it.

    the pads will still need to bed in.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • simonkirton
    simonkirton Posts: 13
    Its a pretty common problem.
    My disc brakes rubbed no matter how I tried to adjsut them.
    One suggestion is apply brake , and then flex disc from side to side close to the caliper , this may adjust the pads/pistons so disc wont rub on them.

    In my case disc was warped enough that it kept rubbing on pads.
    Solution was to get new disc rotor.Been silent ever since.
    You can see if the disc is badly warped by spinning the wheel.

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