Advertise on Bikeforums.net



User Tag List

Results 1 to 7 of 7
  1. #1
    officially vulgar
    Join Date
    Feb 2005
    Posts
    23
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    !!!!!!!!!!!!!!!!!
    Last edited by halimec05; 11-05-05 at 03:35 PM.

  2. #2
    Senior Member sydney's Avatar
    Join Date
    Jan 2004
    Posts
    9,428
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Why not?

  3. #3
    The Improbable Bulk Little Darwin's Avatar
    Join Date
    Jul 2005
    Location
    Wilkes-Barre, PA
    My Bikes
    Many
    Posts
    7,295
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by halimec05
    take 100mm off a 350mm aluminum post, why not?
    Because the energy taken to cut it is more than the energy needed to ride with the extra weght for a year.

    However, if you are compelled to do so, as long as enough seatpost remains to be inserted far enough into the seat tube, I know of no reason other than the above not to do so.

    If I were to go to that much trouble, I would also take the time to etch a new minimum insertion line on the seat post (using the existing line to determine the proper depth). I would also round over the outside edge just a bit with sandpaper, a file or a Dremel tool.
    Slow Ride Cyclists of NEPA

    People do not seem to realize that their opinion of the world is also a confession of character.
    - Ralph Waldo Emerson

  4. #4
    Senior Member
    Join Date
    Sep 2005
    Posts
    104
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    What would you say is a minimum insertion for a seat post? I'm thinking of doing the same thing.

  5. #5
    Senior Member rufvelo's Avatar
    Join Date
    Jun 2005
    Posts
    4,196
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by antiquebiker
    What would you say is a minimum insertion for a seat post? I'm thinking of doing the same thing.
    Measure the min insert distance that the manufacturer has indicated on the uncut post first, and mark the same distance up on the post from where you intend to cut, before cutting the post.

    Remember the seat tube also has a min insert requirement, usually not indicated. You should for example insert the post well past the intersection/lug/welds of the stays/top-tube/seat-tube.

  6. #6
    Senior Member duckliondog's Avatar
    Join Date
    Jun 2005
    Location
    San Diego
    My Bikes
    Cinelli Unica, BP Stealth, K2 Razorback, Steel Bianchi roadie, Bianchi Super GL, Specialized Stumpjumper, and 3 beach cruisers
    Posts
    427
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I like to have at least a fistful of seatpost inserted.

  7. #7
    Senior Member
    Join Date
    Jun 2005
    Location
    Washington DC
    Posts
    965
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you're doing it for weight savings, you may be surprised how little the seatpost tube weighs. Most of the weight of a seatpost is in the clamp.

    One reason not to do it is if you ever want to use the seatpost on a smaller frame, or sell the bike to a taller person. That's two.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •