A creak which I cannot identify

nevica
nevica Posts: 31
edited March 2015 in Workshop
Hello,

I have a Scott Foil 30. I am trying to identify a creak which seems to emanate from the bottom bracket. The creak occurs occasionally under load.

Here is what I have done to identify the creak.

1). Changed the BB and crank. Not solved.
2). Removed seat post and regreased. Applied load on pedals unseated. Not solved.
3). Removed and regreased pedals. Not solved.
4). Removed wheel skewars and regreased. Not solved.

What else could he creak be please?

Thanks,

Daniel

Comments

  • pirnie
    pirnie Posts: 242
    Try greasing your bottle cage bolts. I had a similar creak that was driving me mad and this fixed it.
  • paulleary
    paulleary Posts: 35
    +1 for bottle cage bolts - i ended up putting rubber tap washers between cage and frame which eliminated creak . another common one is saddle - rails and sometimes even screws in saddle itself grease for first loctite for second .
  • diamonddog
    diamonddog Posts: 3,426
    Cleats?
  • taon24
    taon24 Posts: 185
    Headset? You are probably applying forces through the headset as you apply power to the cranks. One test may be to try to generate the creak while on a turbo trainer and not touching the handlebars.
  • lancew
    lancew Posts: 680
    Around the chainring bolts?

    The edge of the chainrings rather then the inside of the bolts.
    Specialized Allez Sport 2013
  • dawebbo
    dawebbo Posts: 456
    This guide is pretty comprehensive:
    http://www.artscyclery.com/learningcent ... reaks.html
  • Tjgoodhew
    Tjgoodhew Posts: 628
    I had a similar creak and was sure it was BB - turned out to be saddle rails.

    Identified by only hearing the noise under load whilst seated so in hindsight pretty obvious but it really sounded and felt like the BB area
    Cannondale Caad8
    Canyon Aeroad 8.0

    http://www.strava.com/athletes/goodhewt
  • First.Aspect
    First.Aspect Posts: 17,167
    Knees?
  • nevica
    nevica Posts: 31
    Could be my knees, definitely!
  • lapavoni10
    lapavoni10 Posts: 146
    check the rear drop-outs, if they are replaceable make sure the bolts are tight. Also make sure its not the front or rear wheel creaking in the dropouts, clean the faces of the dropouts and wheel cone-nuts and QRs.
    I would also agree it could be the headset...make sure there is sufficient space to tighten the stem cap without fouling the top of the fork column.
  • socrates
    socrates Posts: 453
    Remove handlebar face plate and lightly grease bars.

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