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  1. #1
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    Cannondale Jekyll Carbon 2011 Frame Creaking?

    Just picked up a Cannondale Jekyll Carbon and I'm hearing frame creak when I'm climbing.

    The frame creaks with each pedal stroke. Its most noticeable when the left pedal stroke goes down.

    I'm not a heavy rider at 170lbs and don't think the carbon frame should be making the creaking noises. I have an Ibis Mojo SL and that bike is solid and super quiet.

    I've tightened down all the linkage and the seat post collar, but I'm still hearing the creaking.

    Anyone else with a Cannondale Jekyll Carbon 2011 hearing frame creak when pedaling?
    Last edited by zbear; 09-03-2011 at 06:05 PM.

  2. #2
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    Have you tighten the left crankarm & pedals ?

    Also check your seat and ,make sure the rings bolts are tight .
    "There is a big difference between kneeling down and bending over" -FZ

  3. #3
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    These testers also experienced creaking which they put down to the seat post needing a good greasing. Might be worth a try..

    Cannondale Jekyll 3 Review - BikeRadar

  4. #4
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    Quote Originally Posted by fokof View Post
    Have you tighten the left crankarm & pedals ?

    Also check your seat and ,make sure the rings bolts are tight .
    Adjusted and tightened up the bottom bracket and crankarms.

    The seat and rings bolts were also retightened.

    The creaking sound is still there, but not as loud as before.


  5. #5
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    Quote Originally Posted by chick0 View Post
    These testers also experienced creaking which they put down to the seat post needing a good greasing. Might be worth a try..

    Cannondale Jekyll 3 Review - BikeRadar

    I usually wipe my seat post and seat tube as clean as possible since I don't want dirt and grime getting inside the frame tubes.

    Never heard of greasing the the seat post before, but it's worth a try.

  6. #6
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    Quote Originally Posted by zbear View Post
    I usually wipe my seat post and seat tube as clean as possible since I don't want dirt and grime getting inside the frame tubes.

    Never heard of greasing the the seat post before, but it's worth a try.
    Many seat post manufactures say to grease their posts. And many carbon Posts makers say to use specialist grease for the job.

    PACE RC005 Carbon Fibre Seatpost Grease :: 7.99 :: Cycle Maintenance :: Maintenance - Grease :: Rush Cycles South Wales Cycle Specialists

    Also, when aluminum and carbon fiber contact each other, galvanic corrosion can occur.

  7. #7
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    all bikes and especially full suspension bikes will develop creaking issues..... this can be minimized by proper assembly (basically any two parts that come together need some sort of lube or compound between the matting surfaces), and proper maintenance (cleaning the bike properly and re-lubricating as needed).... other times creaking issues are from bearings getting loose or dry... and finally.... bikes require a lot of maintenance to keep them happy....

  8. #8
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    If your frame is all carbon and you have an Aluminum seatpost, you need to put some carbon paste in the tube. If anything it will keep the post from slipping and stops galvanic corrosion.

  9. #9
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    Quote Originally Posted by itchyjesus View Post
    If your frame is all carbon and you have an Aluminum seatpost, you need to put some carbon paste in the tube. If anything it will keep the post from slipping and stops galvanic corrosion.
    so carbon and a thomson seatpost can result in galvanic corrosion?

  10. #10
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    galvanic corrosion as found in wikipedia:

    Galvanic corrosion - Wikipedia, the free encyclopedia

  11. #11
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    I would try and get it fixed...and don't keep riding it if you can't get the creaking to go away. I saw a thread on this forum about a carbon frame that was creaking and it ended up snapping so...ya

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