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  1. #1
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    Shimano xt m8010 rear hub specs for spoke calculation

    I am trying to figure out if the information that I have entered in the spoke calculator is correct. I got the information about the hub from shimano. I have to enter the info for the hub myself because it is not an available option on the spoke calculator. I am looking for a second opinion or someone who has already built up wheels using this hub before I order the precut spokes and the hub.

    Thanks in Advanced.

    Center to Flange: Left: 44 Right: 45
    Flange diameter: Left: 52.8 Right: 53.8
    Attached Thumbnails Attached Thumbnails Shimano xt m8010 rear hub specs for spoke calculation-m8010.jpg  


  2. #2
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    this doesn't look right if the hub is 142mm wide then how can the flange distance be 99mm.

  3. #3
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  4. #4
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    Spoke length left

    292.7 mm
    accurate

    292 mm
    recommended

    Spoke length right

    291.2 mm
    accurate

    290 mm
    recommended

  5. #5
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    How did turn out? Did you ever order the spokes? I'm having some trouble matching the specs on the Shimano site with the fields in the spoke calculator.

  6. #6
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    Just use last year's hub on the drop down menu at that website. I've built one XTR9000 and one XT8000 rear hub this way, worked fine.

  7. #7
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    https://www.youtube.com/watch?v=O8NLQ5bjRFw

    The wheel info is in the video description

  8. #8
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    Quote Originally Posted by StuartTX View Post
    How did turn out? Did you ever order the spokes? I'm having some trouble matching the specs on the Shimano site with the fields in the spoke calculator.
    https://www.youtube.com/watch?v=O8NLQ5bjRFw

    The wheel info is in the video description

  9. #9
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    I guess for purposes of personal enrichment- does anyone want to critique my findings? I've attached the hub specs, the rim specs, and the results of the Sapim Spoke Calculator. Thanks in advance to anyone willing to help a first-time wheel builder.
    Shimano xt m8010 rear hub specs for spoke calculation-m8010-hub-specs.jpgName:  HR935C 29er Rim.jpg
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Size:  33.0 KBShimano xt m8010 rear hub specs for spoke calculation-sapim-spoke-calc-results-shimano-m8010-front.jpg

  10. #10
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    Quote Originally Posted by chaddwick25 View Post
    https://www.youtube.com/watch?v=O8NLQ5bjRFw

    The wheel info is in the video description
    I'm not using the same rims as you, so I don't think I can assume our spoke lengths will be the same.

    EDIT: Never mind, I see you were answering my question and showing me that the wheel build turned out good. Congrats!

  11. #11
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    [QUOTE=StuartTX;13011777]I guess for purposes of personal enrichment- does anyone want to critique my findings? I've attached the hub specs, the rim specs, and the results of the Sapim Spoke Calculator. Thanks in advance to anyone willing to help a first-time wheel builder.
    QUOTE]

    Hi StuartTX,

    I have been looking to your post and I would like to know how you did transform official Simano measurements in value to be entered in the calculators. Seem to be very different.

    I am trying to calculated spoke lenght for a wheel using HB-M8000 (Hub XT8000).
    here are the spec from Shimano doc.
    O.L.D. (mm) 100
    Flange distance (mm) 60.4
    Offset (mm) 5.8
    P.C.D. Left / Right (mm) 44 / 41
    Flange diameter (mm) 52.8 / 51.4

    what is the Flange distance ?
    what is the offset ?

    Thanks for helping.

    Best regards

    docles2000

  12. #12
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    Hi shulze,
    In the website you seem to mentioned (https://www.prowheelbuilder.com/spokelengthcalculator is this the website you're talking about ?), in the listed hubs and freehubs I can't find XTR9000 or XT8000. Only older versions are available.

    Do you have other suggestions ?

    I am trying to build a wheel with HB-m8000 and the measurements done by shimano do not fit the requirements from the calculators online.

    Best regards

    Docles2000

  13. #13
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    I used the XTR M975 dimensions on that site and everything worked out although the M8000 dimensions are slightly different.

    Shimano's info is actually sufficient but it is difficult to interpret. You need to find the flange distance number and divide by 2. Then use the offset (6.6mm) and subtract to get the center-to-ds flange and add to get the center-to-nds flange spacing.

    Doing this,
    DS flange to center is 22.1
    NDS flange to center is 35.3
    PCD is 44/45.

  14. #14
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    Thanks for your help

  15. #15
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    Quote Originally Posted by docles2000 View Post
    StuartTX,

    I have been looking to your post and I would like to know how you did transform official Simano measurements in value to be entered in the calculators. Seem to be very different.

    I am trying to calculated spoke lenght for a wheel using HB-M8000 (Hub XT8000).
    here are the spec from Shimano doc.
    O.L.D. (mm) 100
    Flange distance (mm) 60.4
    Offset (mm) 5.8
    P.C.D. Left / Right (mm) 44 / 41
    Flange diameter (mm) 52.8 / 51.4

    what is the Flange distance ?
    what is the offset ?

    Thanks for helping.

    Best regards

    docles2000
    docles2000,
    My wheel build was a bust. I wasn't able to get the tension that I needed so I took into the LBS. He ordered different spokes (I don't know the exact length) and re-laced and made them right for me. Sorry I couldn't be much help.

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