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Carbon seatpost, anyone using one for DH?

Discussion in 'Downhill & Freeride' started by kellyn7, Apr 22, 2008.

  1. kellyn7

    kellyn7 Monkey

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    I was just wondering if anyone was using carbon seatpost for DH and if so what kind?
     

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  2. sanjuro

    sanjuro Tube Smuggler

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    Why would you use a carbon post?

    If you are worried about weight, just cut your post down to 3 inch length.
     
  3. kellyn7

    kellyn7 Monkey

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    THat was my thoughts but then I saw a couple of pics of dh bikes with what looked like carbon seatpost. No intentions of using one just curious because I always heard using carbon seatpost on dh bikes wasn't a good idea.
     
  4. sperkins

    sperkins Monkey

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    not really sure why you would want to use one...
     
  5. mattmatt86

    mattmatt86 Turbo Monkey

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    Thomson > Carbon
     
  6. BlackAthlete

    BlackAthlete Monkey

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    Thomson FTMFW
     
  7. DirtyMike

    DirtyMike Turbo Fluffer

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    Yeah no carbon for me either, specially when SDG told me specifically that there Carbon post will not hold up to DH.
     
  8. xy9ine

    xy9ine Turbo Monkey

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    really, apart from crashes, seatposts on dh bikes don't see much stress (esp. at the short extensions we typically use). i've seen carbon posts on a few pros bikes. mine certainly hasn't been an issue (and has survived seat-impacting crashes). however not all carbon posts are light (thomson is lighter than a bunch of the cheaper carbon posts out there); verify weight before you buy.
     
  9. DirtyMike

    DirtyMike Turbo Fluffer

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    Yeah I am not going to speak for anyone elses, but I was looking at the SDG stuff at the Nationals down here in Fontana, I was looking to get an Ibeam setup, and The SDG rep told me word for word.... Not on a DH bike, you want the alloy, save the carbon for Xc and AM.


    I dont personally see it as something thats going to break on impact, Carbon has come along ways in the last few years. I dont think it will be much longer before we start seeing production carbon bikes!!!
     
  10. Zark

    Zark Hey little girl, do you want some candy?

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    I love picking carbon spinters outta my a$$
     
  11. poonstar

    poonstar Monkey

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    my buddy is running a sdg i-beam carbon 30.9 post on his dh rig and he hasn't had any problems...there isn't any weight savings compared to my thompson cut down to similar length...other then the "wow" factor in the looks department.
     
  12. ridiculous

    ridiculous Turbo Monkey

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    Im running one with a road saddle, but only because i got it cheaper than a Thomson. No problems as of yet. Dont really spend alot of time on it.
     
  13. Curious_George

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    but is the tiny WOW factor of the post worth the increase in probability of it failing? I dont know about you, for a man's who's already broken one I would say no
     
  14. BikeMike

    BikeMike Monkey

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    Watching The Alien finish a race run with a carbon shiv stuck in his seat tube permanently dampened my desire to run a carbon post on my mountain bikes. DH bikes have a tendency to hit things particularly hard.
     
  15. kuksul08

    kuksul08 Monkey

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    I have one that came on my bike, it's a titec carbon XC 30.9mm. I don't see how it good be beneficial, or a drawback. It's plenty strong, similar weight to a thomson.

    Only reason I switched to thomson is because I needed a longer one.
     
  16. FOXROX

    FOXROX Turbo Monkey

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    what about carbon bars? i put more abuse on them then my seat post
     
  17. Damo

    Damo Short One Marshmallow

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    Easton EC70 (carbon) 30.9, 400mm = 215g
    Thomson Masterpiece (alloy) 30.9, 350mm = 189g

    I know which one I'd have, and infact, do have...
     
  18. PDS RX

    PDS RX Monkey

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    I run an Easton EC70, it works and I don't worry about breaking it. The masterpiece is super nice and very light. The only thing with both those post is how easy it is to crush one with the seat collar. The masterpiece really scares me because that thing is stupid thin.
     
  19. John P.

    John P. Turbo Monkey

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    Weagle used to run one on his Jolly Ol' St. Nucleon BITD. I think it dropped the overall weight from 51 lbs to 50.995 lbs. ;)

    --JP
     
  20. kuksul08

    kuksul08 Monkey

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    I slammed my bike into the ground hard enough to crack the steerer tube at the stem, but the carbon bars are unphased.

    +1 for Azonic ST-1 strength!
     
  21. bpatterson6

    bpatterson6 Turbo Monkey

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    I used a Titec carbon post last year. Crashed and broke the metal clamp that holds the seat on but the post itself was unphased.