Creaky seat post

HarryX
HarryX Posts: 36
edited April 2009 in Road beginners
Hi all

Ive got a giant defy 2.5 and it's started creaking when giving it some beans, but only when Im sitting on the seat, therefore I deduct it must be the seat post ...

I changed the height of the seat recently and noticed the creaking, so I tightened it up a bit however it still creaks. Im reluctant to tighten it any more as the 2.5 has a carbon post which I don't want to damage.

Is there any way I can verify that it's the seat post and/or is there a limit for how tight the seat post fastening should be ?

Cheers :)

Comments

  • CiB
    CiB Posts: 6,098
    Have you raised it beyond its max height marker, or maybe just got a bit too close to it on the safe side?


    You could take it out and give the post & the tube a good clean so that you've got a good clean even contact round the whole post. Look for the recommended carbon seat tube grease too that gives an even grip and should allow it be tightened a bit less.
  • guilliano
    guilliano Posts: 5,495
    Have you checked that the saddle rails are properly secured? A loose bolt there could cause a creak
    http://www.flickr.com/photos/guilliano/
  • Floodcp
    Floodcp Posts: 190
    A friends bike was doing the exact same. It was a carbon post into a carbon frame When we looked into it there was quite a bit of post going into the tube. Not sure if this was significant.

    However I lightly greased the post. i.e. wiped some grease on and then removed it with a cloth.

    Put the post back in and hey presto the creaking was gone. Told him to keep an eye for post slippage. That was a couple of weeks ago and since then no creaks and no slippage of the post.
  • HarryX
    HarryX Posts: 36
    Thanks for the info all. I'll check the saddle and make sure the post is clean and lube it up :)

    I'll post back the results tomorrow when I've had chance to test them out.

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