upgrading 105 hubs

Discussion in 'Cycling Equipment' started by melli, Feb 4, 2004.

  1. melli

    melli New Member

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    I have upgraded the hubs with campy 25 grade
    bearings and bullshot grease. Has anyone tried this.
     
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  2. boudreaux

    boudreaux New Member

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    And you are how much faster? How do you know the original bearings weren't grade 25?
     
  3. melli

    melli New Member

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    In the shimano site the bearings specs aren't
    stainless steel for the 105 nor for ultegra but
    for durace is specifies (stainless steel) so i figured that
    they aren't. I didn't think i would find any significant
    difference at first , but the wheels felt so much smoother.
    The hubs were one season old about 1000 miles
    on them, they were in excelent shape, like new even
    the cups and races, no signs of wear. I paid close
    to $23 for the bearings and installation, still less
    than buying ultegra and much smoother in my opinion.
     
  4. boudreaux

    boudreaux New Member

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    Material has nothing to do with roundness,which is what grade 25 is all about.
     
  5. melli

    melli New Member

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    I searched the net and couldn't find what type of bearings come
    on the 105's. I found that only DURA ACE and XTR specify grade
    25 bearings someplace. Although 105 may or may not have these bearings, after installing them on these hubs, I felt a significant difference to my surprise. Don't get me wrong I really like the 105's. I think they roll more now and may have picked up some speed as well, can't tell you how much faster (mph) but there is something there. Thats why I'm asking if anyone has tried this and got similar results. Your opinion is welcomed on my modification to the hubs.
     
  6. bryanquinn

    bryanquinn New Member

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    Even if it really doesn't, but you feel it does, you already have an advantage over your mates.
     
  7. melli

    melli New Member

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    Can speed be increased with higher grade bearings or higher quality cartridge type bearing hubs everything else being equal?
     
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