Disc brake, wheel wont move?

delude
delude Posts: 110
edited May 2009 in MTB workshop & tech
My front disk brake seems to squeak even if I just push my bike forward when not on it, and if I try to spin the wheel freely it comes to a stop very quickly. I'm new to mountain bikes, so checked the quick release and tested different levels of tightness but that didn't seem to be the problem.
What should I do with the brake?

Thanks

Comments

  • Whytepeak
    Whytepeak Posts: 2,616
    What brake is it?
    Now that we are strong ought to bear the infirmities of the weak and not to please ourselves. ROMANS 15:1
  • delude
    delude Posts: 110
    You mean the make? It's whatever came standard with the DB Groove.
    ('Quad mechanical disc brakes with 160mm rotors') It's the front one.
  • Andy B
    Andy B Posts: 8,115
    Sounds like it needs adjusting. if the bike is new then back to the shop with it.
    2385861000_d125abe796_m.jpg
  • Whytepeak
    Whytepeak Posts: 2,616
    Ok, is the rotor rubbing throughout the whole rotation of the wheel, or on/off
    Now that we are strong ought to bear the infirmities of the weak and not to please ourselves. ROMANS 15:1
  • delude
    delude Posts: 110
    Andy_B wrote:
    Sounds like it needs adjusting. if the bike is new then back to the shop with it.

    :(
    It's only a couple of days old so the free service shouldn't be until a few weeks. I wonder if taking it in would count as the service :?
  • delude
    delude Posts: 110
    edited May 2009
    Whytepeak wrote:
    Ok, is the rotor rubbing throughout the whole rotation of the wheel, or on/off

    I will have to run and check...
    Yeah it seems to rub throughout, as if the wheel is turned (when off the ground) you can hear the noise that should be present when applying the breaks.
  • Andy B
    Andy B Posts: 8,115
    delude wrote:
    Andy_B wrote:
    Sounds like it needs adjusting. if the bike is new then back to the shop with it.

    :(
    It's only a couple of days old so the free service shouldn't be until a few weeks. I wonder if taking it in would count as the service :?
    It's not been set up right from the start, so no it shouldn't count as the free service.
    2385861000_d125abe796_m.jpg
  • Jay dubbleU
    Jay dubbleU Posts: 3,159
    Taking it in because the brake setup is wrong shouldn't affect the free service - the bike should be of saleable quality in the first place :)
  • delude
    delude Posts: 110
    Yeah i guess so :D

    Is it something easy to fix though? If I was to take it in then he'd want me to drop it off and collect it on Monday or something which isn't really very practical, and if he has set it up like it is then I would probably prefer to learn how to do it myself for the future.

    Thanks
  • Whytepeak
    Whytepeak Posts: 2,616
    Should be a quick fix, ask the guy if he'll show you how to do it
    Now that we are strong ought to bear the infirmities of the weak and not to please ourselves. ROMANS 15:1
  • delude
    delude Posts: 110
    So there's no way of me doing it myself?
  • Whytepeak
    Whytepeak Posts: 2,616
    Yep - undo the two bolts holding the caliper to the fork

    Then pull the brake on hard, then with the brake still on, slowly tighten the caliper bolts.

    If both pads of the brake move, then the rotor will now be centered.
    If only one pad moves, and the other is a stationary pad, then there will still be the rubbing you describe.

    If this is the case you'll need to align the caliper by eye. - Try and gat the rotor as close to the stationary pad as possible, without it rubbing.
    Now that we are strong ought to bear the infirmities of the weak and not to please ourselves. ROMANS 15:1
  • nicklouse
    nicklouse Posts: 50,673
    Whytepeak wrote:
    Yep - undo the two bolts holding the caliper to the fork

    Then pull the brake on hard, then with the brake still on, slowly tighten the caliper bolts.

    If both pads of the brake move, then the rotor will now be centered.
    If only one pad moves, and the other is a stationary pad, then there will still be the rubbing you describe.

    If this is the case you'll need to align the caliper by eye. - Try and gat the rotor as close to the stationary pad as possible, without it rubbing.

    only if both pistons move.

    looks like the grey adjuster dials need turning to position the pads.

    But as already said it is poor set up and the shop should sort it.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown

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