Advertise on Bikeforums.net



User Tag List

Results 1 to 16 of 16
  1. #1
    The Cycle of Life Turbonium's Avatar
    Join Date
    Jul 2003
    Location
    Ottawa, Kanukistan
    My Bikes
    Trek 520, Eclipse Carbon, Eclipse Al, Unknown Fixie.
    Posts
    414
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    my 520!! i am doomed

    ok heres the deal, i have a 2003 trek 520
    i check the specs of the 2004, the frame of the 04 is triple butted
    and my frame is double butted!! what is the difference? butted steal means that it gets thicker at the lugs right? hellppppp. will this afect my future touring? arggggg thanks

  2. #2
    DEADBEEF khuon's Avatar
    Join Date
    Aug 2002
    Location
    Catching his breath alongside a road near Seattle, WA USA
    My Bikes
    1999 K2 OzM, 2001 Aegis Aro Svelte
    Posts
    12,155
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I think you're in trouble. When butted tubing first appeared on the scene, all of the straight gauge frames exploded. All at once. Unbelievable but true. Then when double-butted tubes showed up, all the single-butted frames started to melt. You better go out and get that triple-butted frame right now! Don't even think about riding your double-butted frame as it will most likely disappear into some sort of time-space discontinuity.

    Seriously, the butting will shave a bit of weight and maybe change the ride characteristics slightly but I think your frame is fine. Single-butted tubes are thicker at one end and then taper down for the rest of the length. Double-butting usually means it changes thickness in the middle and returns to the same thickness at the other end. Triple-butting just means that it changes thickness twice with the end thickness not necessarily the same as the beginning.

    1999 K2 OzM 2001 Aegis Aro Svelte OCP Club Member
    "Be liberal in what you accept, and conservative in what you send." -- Jon Postel, RFC1122

  3. #3
    Senior Member MrEWorm's Avatar
    Join Date
    Aug 2003
    Location
    Aurora, IL
    Posts
    265
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Could there be a marketing idea for a new model non butted bike here.

    "I Can't Believe It's Not Butted".

    That is kind of catchy

  4. #4
    One less car Jay H's Avatar
    Join Date
    Aug 2003
    Location
    Lenox, MA
    My Bikes
    '08 Soma Groove (commuter/long distance tourer), '97 Lemond Zurich (road commuter/tourer),'01 Seven Axiom Ti, '03 Look KG381i, '01 Santa Cruz Superlite X
    Posts
    966
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    My touring bike is so butted, I can't see the middle of my top tube. In fact, I have accidentally tripped over my top tube because I forgot where the tube was. Very embarrasing!

    Jay

  5. #5
    Senior Member
    Join Date
    Feb 2001
    Location
    England
    Posts
    12,073
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Single butted: one end of the tube is thickened for strength.
    Double butted: two ends of the tube are thickened for strength.
    Tripple butted: three ends of the tube are thickend for strength.

  6. #6
    Senior Member
    Join Date
    Jun 2002
    Location
    Travelers Rest, SC
    Posts
    315
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I think that the butts are doing the posting.


  7. #7
    A Heart Needs a Home Rich Clark's Avatar
    Join Date
    Oct 2001
    Posts
    1,387
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Don't worry about it. Triple butting is only useful for folding bikes.

    RichC
    Training: 2002 Fuji Roubaix Pro (105 triple)
    Commuting/Daytripping: 2001 Airborne Carpe Diem (Ultegra/XTR, touring wheels)
    Commuting/Touring: 2000 Novara Randonee (Sora/Tiagra/LX, fenders, lights)

  8. #8
    The Cycle of Life Turbonium's Avatar
    Join Date
    Jul 2003
    Location
    Ottawa, Kanukistan
    My Bikes
    Trek 520, Eclipse Carbon, Eclipse Al, Unknown Fixie.
    Posts
    414
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    thanks people! i feel much better! but the 04 pedals are shimano m520 and i have m515!! ohh no i am STILL DOOMED!!!! just kidding about the pedals, they don't matter That much.

  9. #9
    Senior Member danr's Avatar
    Join Date
    Jul 2002
    Location
    Midwest USA
    My Bikes
    Trek 8000 (I'm testing a prototype).
    Posts
    590
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Originally posted by MrEWorm
    Could there be a marketing idea for a new model non butted bike here.

    "I Can't Believe It's Not Butted".

    That is kind of catchy
    Good one.

    Does the perfect bike really exist?

  10. #10
    Senior Member
    Join Date
    Dec 2002
    Location
    Cherry Hill,NJ
    Posts
    1,126
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Oh my god, planned obsolesence! Where could Trek get such an idea? Ah, let me scatch my head here, GM, Ford, Daimler Chrysler, Dell, IBM, Gateway, Intel, Microsoft, Sony, EA Sports, Dunkin Donuts... Just to name a few!

    I put more miles on my 96 520, but I swear my 88 520 is a better bike. And there are no buts about it.
    I'm just trying to be the person my dog thinks I am.

  11. #11
    DEADBEEF khuon's Avatar
    Join Date
    Aug 2002
    Location
    Catching his breath alongside a road near Seattle, WA USA
    My Bikes
    1999 K2 OzM, 2001 Aegis Aro Svelte
    Posts
    12,155
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Originally posted by tom cotter
    Oh my god, planned obsolesence! Where could Trek get such an idea?
    I don't think of triple and quadruple and quintuple and... well whatever butted tubing as planned obsolesence. I mean, it's not like you won't be able to find compatible parts in the future because of the butting of your frame tubing. It's an internal design (literally) that has no interface to the other components.
    1999 K2 OzM 2001 Aegis Aro Svelte OCP Club Member
    "Be liberal in what you accept, and conservative in what you send." -- Jon Postel, RFC1122

  12. #12
    Member
    Join Date
    Aug 2003
    Location
    Boulder CO
    Posts
    31
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Just my opinion, but I would think that the double butted tubing would be stiffer and therefore less wobbly when heavily loaded than the thinner (in the middle) tripple butted.

    I would guess that Trek got a deal on some of this tubing and that's why they went with the tripple butted stuff for '04.

    Ride safe,

    John

  13. #13
    Senior Member
    Join Date
    Sep 2003
    Location
    Canada
    Posts
    182
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If it makes you feel better, I think that the PD-M515 pedals are lighter. They are one of the lighter pedals Shimano makes, I have them on all my bikes and am very happy with them.
    Hello :) Come visit my BLOG at www.bentupbike.blogspot.comwww.bentupbike.blogspot.com

    2005 Burley Sandpoint
    2005 Dahon Piccolo

  14. #14
    Oh God, He's back! 1oldRoadie's Avatar
    Join Date
    May 2002
    Location
    Charleston, SC
    My Bikes
    Paramount
    Posts
    1,022
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    An '03? has it got over 10,000 miles on it? If not then its not broken in, and if it does then you ride enough not to sweat the small stuff
    I can't ride and Frown!

  15. #15
    Advertise here! Chuvak's Avatar
    Join Date
    Jan 2003
    Location
    Brooklyn, NY
    My Bikes
    2002 Allez A1xx SE
    Posts
    981
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by MichaelW
    Tripple butted: three ends of the tube are thickend for strength.
    Um, how do I brake this to you? There is only two ends in a tube

  16. #16
    ld-cyclist prestonjb's Avatar
    Join Date
    Aug 2003
    Posts
    380
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The flex added by going triple butted may be offseted with the stronger steel used to make the tube?

    Therefore they can afford to make it lighter now... than... then...

Posting Permissions

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