Carbon Seatpost flex

2tired2ride
2tired2ride Posts: 285
edited July 2009 in MTB beginners
How much are carbon seatposts surpose to flex? I have a FSA SL-K carbon seatpost in my titainium mountain bike and it is near it's maxium insert point and it flex's quite a bit.

I was just wondering how much flex should be expected?

:D
"If we all had hardtails we'd all go down the hill, just slower"
Nick Larsen


Voodoo D-Jab Ti
Boardman Road Team 09
Boardman Urban Team 08
Falcon 3 Speed

Comments

  • supersonic
    supersonic Posts: 82,708
    Depends on model. Some are designed to give a bit, and is always more noticable the longer the post is.

    How much do you weigh?
    GT ZASKAR CARBON TEAM

    VOODOO CANZO

    Come and see me at https://www.facebook.com/biketyke/
  • 2tired2ride
    2tired2ride Posts: 285
    Just over 10 stone. I didn't know if the titainium frame gave it any extra flex? It is a long seatpost though.
    "If we all had hardtails we'd all go down the hill, just slower"
    Nick Larsen


    Voodoo D-Jab Ti
    Boardman Road Team 09
    Boardman Urban Team 08
    Falcon 3 Speed
  • supersonic
    supersonic Posts: 82,708
    The top of a light ti frame may well indeed flex. The FSA is a pretty hefty carbon post though. Make sure it extends down past the the top tube when inserted.
    GT ZASKAR CARBON TEAM

    VOODOO CANZO

    Come and see me at https://www.facebook.com/biketyke/
  • 2tired2ride
    2tired2ride Posts: 285
    The seatpost is inserted 2cm away from the maxium insert so it's still got 12cm of seatpost in the frame and 7cm below the top tube from the centre (of TT).

    It's looks like the top flex's the most like a cm or so below the setback. It proballt is ment to flex this much, but is just looks a lot.

    thanks ss

    :)
    "If we all had hardtails we'd all go down the hill, just slower"
    Nick Larsen


    Voodoo D-Jab Ti
    Boardman Road Team 09
    Boardman Urban Team 08
    Falcon 3 Speed

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