26.0 vs 31.8 - What's the difference ?

Discussion in 'Cycling Equipment' started by ieandro, Jan 6, 2007.

  1. ieandro

    ieandro New Member

    Joined:
    Aug 19, 2006
    Messages:
    60
    Likes Received:
    0
    Are there any advantage of having a 31.8mm size handlebar over 26.0mm bar ?

    What is the reason of phasing out 26.0 ? Or at least from what I heard from my bikeshop.
     
    Tags:


  2. bobbyOCR

    bobbyOCR New Member

    Joined:
    Aug 31, 2005
    Messages:
    1,357
    Likes Received:
    0
    its like the integrated vs traditional headset battle, it is the latest techno-fad. They say its stiffer, but I couldn't tell the difference between two different sizes of the same bar. They are 'phasing out' 26 because the pros ride 31.8, and everyone wants 31.8 now. Oh, yeah, 31.8 are a tiny bit heavier (general statement, has to be the same model of bar)
     
  3. xxamr_corpxx

    xxamr_corpxx New Member

    Joined:
    Mar 16, 2006
    Messages:
    327
    Likes Received:
    0
    From what I hear, less flex and increased stiffness.
     
  4. bobbyOCR

    bobbyOCR New Member

    Joined:
    Aug 31, 2005
    Messages:
    1,357
    Likes Received:
    0
    :confused:

    I thought they were the same thing.
     
  5. PeterF

    PeterF New Member

    Joined:
    Sep 13, 2004
    Messages:
    983
    Likes Received:
    0
    I've had three 31.8 set ups. They're pretty stiff (I can't tell a huge difference from my older 26.0's), but bar slippage has really been a non issue. I have two Ritchey WCS OS combo's, and they're very light. I would think the oversized would be an advantage with carbon bars (larger diameter is a little stronger, larger clamp surface etc).
     
  6. alfeng

    alfeng Well-Known Member

    Joined:
    Jul 23, 2005
    Messages:
    6,723
    Likes Received:
    126
    A secondary reason as to why the "industry" has embraced the 31.8 OS (Over Sized) handlebar center section "standard" is because it saves money on inventory ... if only in stem sizes that need to be produced/catalogued.

    The smaller sizes (25.4 to 26.2) are a legacy from when bikes used quill stems ... a very long legacy.

    For most ROAD riders, the mechanical advantage is probably imperceptible if they are already using a qualtiy bar & stem.

    There may be a more obvious advantage for MTB riders who happen to negotiate rock strewn trails -- I don't know ...

    But, a lot of innovations (of necessity OR engineering fancy) are most readily accepted by the MTB community and are subsequently accepted in more tradition-oriented ROAD equipment as sponsors convince their riders to use the "new" equipment.
     
  7. DiabloScott

    DiabloScott New Member

    Joined:
    May 15, 2003
    Messages:
    2,284
    Likes Received:
    2
    If MTB and Road bars are all eventually the same size, then the stems will work on both kinds of bikes and that's something I guess - especially if you run a shop.

    With 26.0 (the "other" standard and still quite common if not the most common) you'll have less trouble with clamp on computer mounts and lights, that sort of thing.

    I wouldn't consider 31.8 an upgrade, but I wouldn't mind it if it came on a new bike either. It's just not that important.
     
  8. alfeng

    alfeng Well-Known Member

    Joined:
    Jul 23, 2005
    Messages:
    6,723
    Likes Received:
    126
    It may be inelegant, but I found that the standard clamp readily fits where the OS section meets the rest of the bar ... of course, the width of the center section varies, but the computer head (or, whatever is being attached) ends up to one side of the stem over the OS section -- worth trying to see if the positioning is acceptable before buying the "extra" clamp.
     
  9. CAMPYBOB

    CAMPYBOB Well-Known Member

    Joined:
    Sep 12, 2005
    Messages:
    11,945
    Likes Received:
    1,038
    I switch back and forth regularly between older Cinelli alloy bars and a new FSA Energy bar with the larger 31.8 (1.500") center section.

    I notice no difference in flex between the two handlbars. The Cinelli bar is on my track bike and they get plenty of pushing and pulling.
     
  10. The Evil Twin

    The Evil Twin New Member

    Joined:
    Dec 14, 2006
    Messages:
    89
    Likes Received:
    0
    But carbon bars are stiffer. Some carbon bars are 26mm to save weight.
    The OS thing started with people trying to make ultralight aluminum bars, and with aluminum, bigger, thinner, tubes are stiffer.
     
  11. PeterF

    PeterF New Member

    Joined:
    Sep 13, 2004
    Messages:
    983
    Likes Received:
    0
    My thinking on the OS carbon is along the lines of carbon fiber fork steerers. The 1.125" can use more headet spacers than the 1".
     
  12. Wurm

    Wurm New Member

    Joined:
    Aug 6, 2004
    Messages:
    2,202
    Likes Received:
    0
    I think oversized has it's place in the carbon world where the stress is spread over a larger area but I don't think it's necessary in the aluminum arena.

    Otherwise, it seems to me yet another ploy by the industry to get many of us to buy more "new & improved!" (read: unneccesary) stuff, and/or as others have said, to make inventory easier for mfg's and thus, to increase their profits.
     
  13. Bigbananabike

    Bigbananabike Member

    Joined:
    Dec 29, 2004
    Messages:
    967
    Likes Received:
    15
    I just like the feel of my OS bars:) It's nice to grip the wider section(I have reasonably big hands "big hands I know you're the one...") and it feels better than the thinner middle sections on my standard bars.
    I can still be a pain getting some light units/computers to fit though.
     
  14. CAMPYBOB

    CAMPYBOB Well-Known Member

    Joined:
    Sep 12, 2005
    Messages:
    11,945
    Likes Received:
    1,038
    Hmmm? I wonder if Beck runs an onversize bar?
     
  15. rdk

    rdk New Member

    Joined:
    Aug 21, 2005
    Messages:
    140
    Likes Received:
    0
    I read in the papert hat the VF drummer moved to Tasmania
     
  16. dgregory57

    dgregory57 New Member

    Joined:
    Jul 11, 2005
    Messages:
    708
    Likes Received:
    0
    Some titles just bring out an attitude in me (in a joking way) and I have bypassed it here, but now it showed up one too many times and I have to get it out of my system.

    The answer is 5.8 :p
     
  17. DiabloScott

    DiabloScott New Member

    Joined:
    May 15, 2003
    Messages:
    2,284
    Likes Received:
    2
    HA! BTW, your HS photo looks like a guy who used to beat me up.
     
Loading...
Loading...