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  1. #1
    used to be RipRoar
    Reputation: TraxFactory's Avatar
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    Rohloff 142 x 12

    Anyone hear anything from Rohloff in regards to supporting the 142 x 12 standard...

    I dont think they will ever get the axle in there but some kind of axle plate adapter kit that uses a custom 9mm skewer is what I was thinking....

  2. #2
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    I had a big reply but deleted it.
    There's a few ways I could think of doing it, but none are ideal, and all add parts and complexity, increase wheel change time, and decrease stiffness.

    Still though, if you have access to a lathe, it can be done I'm sure.

  3. #3
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    I agree with you that at present the only way to work it would be to use a QR Rohloff with a longer skewer and some spacers; and I'd bet a 135 bolt-on Rohloff would be stronger/stiffer than the 142 QR with spacers.

  4. #4
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    There are longer Threaded OEM disk side plate:
    starbike.com

    Don't know for the drive side. Would make a strange chain line ....
    "There is a big difference between kneeling down and bending over" -FZ

  5. #5
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    Bump...
    With the arrival of the gates drive capable ibis tranny 29 (and others) this is getting more and more interesting...

  6. #6
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    I agree. I would love to put a rohloff on a Ibis Tranny, but I don't know if this would be possible. Does anyone know of a cad model of a a Rohloff. I have a few friends at Ibis, and I would be happy to see if we could come up with a way to make this work out, but I would want to mock it up in CAD first.

  7. #7
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    I just recieved my tranny 29 last week and my interest in this idea has been reignited...
    I am surprised rohloff havent done this yet? I suspect they may have to soon...
    Would be really keen to see how you go with the CAD

  8. #8
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    Quote Originally Posted by ianthom View Post
    I am surprised rohloff havent done this yet? I suspect they may have to soon...
    I can't see how they can, given that part of the shift mechanism is coaxial with the hub axle; for a 12mm TA it would mean a total redesign and I don't think MTB is that big a chunk of their market.

  9. #9
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    Quote Originally Posted by ratherbeintobago View Post
    I can't see how they can, given that part of the shift mechanism is coaxial with the hub axle; for a 12mm TA it would mean a total redesign and I don't think MTB is that big a chunk of their market.
    That is exactly it. I read a post directly from Rohloff (cannot re-locate for reference at this time) that basically said, they would need to completely redesign and retool to be able to accommodate this. They also felt the 142x12 was not a true industry standard as of that time and as posted above MTB was not their core market.

    I am still hopeful on some type of adapter but it would have to be stout. For now, frames with changeable dropouts seems to be the future MTB / Rohloff route once the skinny QR completely disappears from descent mainstream frames...oh wait, that already happened.

  10. #10
    singlespeed smash brother
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    There are plenty of decent modern frames with interchangeable sliding drop outs. The field gets thinner if you are thinking of dual suspension. On the upside older 135mm dropout frames are usually quite cheap on the second hand market.

  11. #11
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    Quote Originally Posted by shwinboy View Post
    There are plenty of decent modern frames with interchangeable sliding drop outs. The field gets thinner if you are thinking of dual suspension. On the upside older 135mm dropout frames are usually quite cheap on the second hand market.
    Yes, however there are some (eg. Niner SIR9/ROS9, Tranny) which would otherwise work as they've other means of chain tensioning, but have a fixed 142x12 read dropout.

  12. #12
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    From the TREK website

    The original ABP provides our innovative active-
    suspension benefits with either a traditional 135x5mm
    rear wheel (Classic) or 150x12mm (DH).

    ABP Race offers all the performance characteristics of
    ABP in a narrower, lighter, faster setup that allows skewer
    lever position independent of tension. Plus, it’s thru-axle
    stiff — 30% stiffer than any other open dropout design.

    ABP Convert is the same ABP performance you know
    and love, but now with multiple wheel interface options.
    New for 2011, ABP Convert comes standard on most Fuel
    EX and all Remedy bikes, for use with a 142x12mm rear
    wheel and Maxle Lite thru axle.
    Want to use an old 135x5mm wheel? All ABP Convert-
    equipped bikes are reverse compatible—they ship with
    extra hardware + skewer to allow an easy, flawless switch
    to the old system.

    ABP Convert FR is the same concept as ABP Convert, but
    changes from a 135x12mm to a 142x12mm interface with
    the included hardware

  13. #13
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    benmtb44:

    you can find a cad file here at:
    Cloud based PDM for managing and sharing CAD - GrabCAD

    Most downloaded models - GrabCAD

    I used it when I built my own frame for a Rohloff.

    Dan "Fooly"

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