Chain problem: or loose, or tighten...

Discussion in 'Bicycle Repair' started by DanielMaia, Sep 13, 2010.

  1. DanielMaia

    DanielMaia Member

    Hi guys,

    Im freaking out with the chain, because when i take a ride, the chain is constantly, or large..or too tighten..

    Should i get a new chain? My bike has 1700km, with some maintenance,

    The chain is only tighten where the chain link passes in the last teeth of the sprocket, what this means, exactly?

    Sorry for my bad english, hope you understand :)
     

  2. GearNut

    GearNut Active Member

    4 things could cause that.
    1. Rear sprocket is not perfectly centered on rear wheel.
    2. Chain has links that cannot freely pivot on the link pins.
    3. Chain is too small width wise to fit over sprocket.
    4. The valleys between the sprocket teeth are cut too deep/ teeth are too tall.

    3 and 4 can cause very strange sounds, almost like the chain is being plucked like a guitar string.
     
  3. DanielMaia

    DanielMaia Member

    Maybe i should get a new chain, because the rear sprocket is kite fine, i think
     
  4. DanielMaia

    DanielMaia Member

    Hi guys,

    Sorry the late, i bought a new chain, aligned the sprocket. and..its perfect!

    100% portuguese made, high quality, excellent driving :D

    thanks
     
  5. GearNut

    GearNut Active Member

    Thank you for the up-date, I am glad to hear that you got it all worked out!
     
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