Author MkII Steering Stem OD / ID ?  (Read 7530 times)

0 Members and 1 Guest are viewing this topic.

  • Offline oc_geek

    • CBF Member  ‐    24
    • **
    • Topic Author

    Offline oc_geek

    • CBF Member
    • **
    • Topic Author
    • Posts: 24
    • Bike: CBF 1000 ST 2011
    • City / Town: Sirtori
    MkII Steering Stem OD / ID ?
    on: 28 November, 2018, 12:48:58 pm
    28 November, 2018, 12:48:58 pm
    Hi all,
    i tried to look up by the search without luck
    (while there are some interesting discussion on the bearings didn't manage to find that info on subject)

    Does anyone happen to know the steering stem Out Diameter (mm) of the MKII ? and as a stretch the ID too...  :007:

    Thanks



  • Offline oc_geek

    • CBF Member  ‐    24
    • **
    • Topic Author
    • #1

    Offline oc_geek

    • CBF Member
    • **
    • Topic Author
    • Posts: 24
    • Bike: CBF 1000 ST 2011
    • City / Town: Sirtori
    Re: MkII Steering Stem OD / ID ?
    Reply #1 on: 29 November, 2018, 03:18:12 pm
    29 November, 2018, 03:18:12 pm
    I'll try to answer myself by looking at the stem bearings dimensions (e.g. AB 22-1020)
    which would read as OD x ID x Height

    Upper bearing is 47x26x15
    Lower bearing is 55x30x17

    So it appears that the stem OD is 26mm and grows to 30mm at the triple clamp head (where the lower bearing will sit tight)

    So a tube of 30mm ID and 2mm thickness (to avoid tuching the bearing cage) would be my friend...to sit the lower bearing (when the time would come)

    If you see anything incorrect please advise 

    Cheers  :031:

  • Offline inblues   ca

    • CBF Newbie  ‐    11
    • *
      #2

    Offline inblues

    • CBF Newbie
    • *
    • Posts: 11
    • Bike: CBF 1000FAC SC64
    • City / Town: Toronto
    • Country: ca
    Re: MkII Steering Stem OD / ID ?
    Reply #2 on: 28 September, 2023, 03:58:20 pm
    28 September, 2023, 03:58:20 pm
    I am wondering same for my 2012 SC64. All I can find ID and OD are for SC54. Are they the same for both models?

    *Originally Posted by oc_geek [+]
    Hi all,
    i tried to look up by the search without luck
    (while there are some interesting discussion on the bearings didn't manage to find that info on subject)

    Does anyone happen to know the steering stem Out Diameter (mm) of the MKII ? and as a stretch the ID too...  :007:

    Thanks

  • Offline Art   england

    • CBF Legend  ‐    2242
    • *****
      #3

    Offline Art

    • CBF Legend
    • *****
    • Posts: 2242
    • Bike: SC58 CBF1000 A-6
    • City / Town: Shoreditch
    • Country: england
    Re: MkII Steering Stem OD / ID ?
    Reply #3 on: 28 September, 2023, 04:34:43 pm
    28 September, 2023, 04:34:43 pm
    The SC54 (2003-2012 CB1300), SC58 (2006-2009 CBF1000) and SC64 (2010-2013 CBF1000) all have 26 x 47 x 15 mm (top) and 30 x 55 x 18 mm (bottom) steering head bearings, my assumption is they are the same.

    Note the stem is not tapered but stepped

    Last Edit: 28 September, 2023, 04:37:35 pm by Art

  • Offline inblues   ca

    • CBF Newbie  ‐    11
    • *
      #4

    Offline inblues

    • CBF Newbie
    • *
    • Posts: 11
    • Bike: CBF 1000FAC SC64
    • City / Town: Toronto
    • Country: ca
    Re: MkII Steering Stem OD / ID ?
    Reply #4 on: 28 September, 2023, 04:54:12 pm
    28 September, 2023, 04:54:12 pm
    Thank you Art for reply.
    On bottom bearing, I assume depth of the bearing being 17 mm or 18 mm will not make any difference?

    *Originally Posted by Art [+]
    The SC54 (2003-2012 CB1300), SC58 (2006-2009 CBF1000) and SC64 (2010-2013 CBF1000) all have 26 x 47 x 15 mm (top) and 30 x 55 x 18 mm (bottom) steering head bearings, my assumption is they are the same.

    Note the stem is not tapered but stepped

  • Offline Art   england

    • CBF Legend  ‐    2242
    • *****
      #5

    Offline Art

    • CBF Legend
    • *****
    • Posts: 2242
    • Bike: SC58 CBF1000 A-6
    • City / Town: Shoreditch
    • Country: england
    Re: MkII Steering Stem OD / ID ?
    Reply #5 on: 28 September, 2023, 05:45:18 pm
    28 September, 2023, 05:45:18 pm
    I see the bottom race specified as 17 or 18 mm by different bearing manufacturers, so I'd assume you to be correct.

     



    diverse-leafy