Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10
  1. #1
    Junior Member
    Join Date
    Jun 2008
    Location
    Central Delaware
    My Bikes
    Specialized Allez
    Posts
    15
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Replace freehub?

    I am thinking about upgrading my 2007 Allez with the Shimano 105, 5800 groupset and was wondering if the 8-speed freehub will need to be replaced to accommodate the 11-speed cassette. If my current freehub won't work can I just replace the freehub or do I need replace the whole hub/axle assembly?

    Thanks for your help.

    Len
    That's the trouble with Alzheimer’s. You keep forgetting you've got it.

    But you make new friends every day.

  2. #2
    Senior Member
    Join Date
    Sep 2004
    Location
    boston, ma
    Posts
    2,841
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    what hub do you have now? you will need new wheels most likely

  3. #3
    Senior Member
    Join Date
    Nov 2013
    Location
    Austin, Tx
    My Bikes
    78 Raleigh Pro, 77 Fuji Sports 10 (Fixed)
    Posts
    120
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    also if the 11 speed requires a new hub, that could make it wider than your rear triangle can take, right?

  4. #4
    Junior Member
    Join Date
    Jun 2008
    Location
    Central Delaware
    My Bikes
    Specialized Allez
    Posts
    15
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the reply. It has the stock Specialized/SRAM PG850, 12-26t, according to the specs.
    That's the trouble with Alzheimer’s. You keep forgetting you've got it.

    But you make new friends every day.

  5. #5
    Senior Member Bill Kapaun's Avatar
    Join Date
    Feb 2007
    Location
    Mid Willamette Valley, Orygun
    My Bikes
    86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
    Posts
    7,388
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    That's the cassette, not the hub.

  6. #6
    Senior Member
    Join Date
    Jun 2011
    Location
    Birmingham
    My Bikes
    Felt ZXX
    Posts
    392
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The new freehub on 11 speed wheels is 1.85 mm wider, but the axle width is still 130 mm. Without some clever machining*, there really isnt a way to make a an 11 speed cassette fit on those wheels. For about $50.00 you can get a good quality replacement hub (11 speed, such as the 105 5800 hub) and rebuild the wheel, and all should be fine.

    *I've read reports of using a lathe to remove 1.85 mm of material from the back of the hub, It worked so long as the cassette was large enough to keep the derailleur low and away from the spokes. Unless you own a lathe, or are willing to risk it, it's probably not worth the cost.

  7. #7
    Senior Member
    Join Date
    Dec 2010
    Location
    Above ground, Walnut Creek, Ca
    My Bikes
    7 single speed road
    Posts
    4,444
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    i would think about whether or not the drive-side locknut would clear the cassette lockring or not if an 11 speed freehub were put on an 8 speed hub shell. if it doesn't and if the hub axle is threaded and uses cones and locknuts, you may be able to move the axle over a bit and gain a 2-3 millimeters, but if the hub shell (without the freehub), is more than a few millimeters wider than an 11 speed hub shell (and i don't know if it is narrower, the same or wider), you may be out of luck.

    you might just have to try it.

  8. #8
    Junior Member
    Join Date
    Jun 2008
    Location
    Central Delaware
    My Bikes
    Specialized Allez
    Posts
    15
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thank you for all the replies. Is it possible to replace just the freewheel body with the latest one, Shimano part # Y31F98070? I just can't afford a new groupset and new wheels right now.
    That's the trouble with Alzheimer’s. You keep forgetting you've got it.

    But you make new friends every day.

  9. #9
    Senior Member
    Join Date
    Dec 2010
    Location
    Above ground, Walnut Creek, Ca
    My Bikes
    7 single speed road
    Posts
    4,444
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)

  10. #10
    Senior Member
    Join Date
    Sep 2004
    Location
    boston, ma
    Posts
    2,841
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    you need to know wht brand hub you have. the part you linked will not work

Posting Permissions

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