What size are these Handlebar bolts?

Discussion in 'GS Boxers' started by BJMoose, Oct 5, 2019.

  1. BJMoose

    BJMoose that trick never works

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    Fellow R1200 Camhead owners I turn to you with this perplexing question.

    What size are these Torx heads. I looked and I can't find the size.

    Follow up question; What size Hex head bolt would replace them? IMG_3358.jpg
    Cheers
    #1
  2. lewisjr1

    lewisjr1 Long timer Supporter

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    As listed in Max's parts fiche...

    Forward bolt = 07 12 9 906 205 ASA-BOLT - M10X90

    Rear bolt = 07 12 9 906 204 ASA-BOLT - M8X30

    OE bolt heads are size 10 E-torx, iirc.
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  3. lnewqban

    lnewqban Ninjetter

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    [​IMG]
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  4. Rnosse

    Rnosse Adventurer

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    +1
    [​IMG]
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  5. BJMoose

    BJMoose that trick never works

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    Obviously I forgot to look at Max's part fiche. :doh

    Thanks for the help.
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  6. lewisjr1

    lewisjr1 Long timer Supporter

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    The chart above is a helpful reminder, too. I'd forgotten that different tools were required. Maybe that was a security thing in BMW's view.
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  7. Hogges

    Hogges Been here awhile

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    Unusual how BMW chooses to use different size screws for single applications. So far I added E-12, E-10 and E-8 external torx sockets to my tools, with the first two needed for the handlebars and the latter two for the bash plate (on my ‘09 hexhead).
    #7
  8. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    Something is screwy. You should only need the E-8 for the handlebars, and no E-torx for your bash plate.
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  9. Hogges

    Hogges Been here awhile

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    Hi Jim. Are we talking about different things? See picture op BJMoose, above. Looks like mine, two different sizes. E-12 (M10) and E-10 (M8) are both needed. And I am positive that I needed E-10 and E-8 to remove the engine bash plate for the oil change as I did it not too long ago.
    #9
  10. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    Must be a change in your model year that I didn't see for the bash plate, pictured 2 different kinds for the Camhead. Looks like you are correct for the handlebars. 20 Bash Plate 2.jpg Oil bash plate removal 03.jpg Oil bash plate removal 04.jpg Oil bash plate removal 02.jpg PA115613.JPG PA185752.JPG
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  11. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    That said, instead of so many different tools, why not change the bolts? Bt the way, look at your shifter bolt.
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  12. lewisjr1

    lewisjr1 Long timer Supporter

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    The fiche calls for two bolt sizes for OP's model year. I didn't go check my Hexhead for comparison, but the fiche doesn't lie - except when it occasionally does.

    And the pic's above sure show a clean bike! I don't think mine has ever been that shiny. Almost makes me want to grab a bucket & brush.
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  13. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    That bike was new when those photos were shot in 2010 for the Camhead video.
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  14. BJMoose

    BJMoose that trick never works

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    Jim, I commend you on your excellent photography, sparkling clean bike, and creative use of arrows.

    But seriously; Thanks for contributing your wealth of useful technical knowledge to these forums.

    You have saved me time and trouble and more importantly your posts and videos have encouraged me to work on my own bike.

    Cheers
    #14
  15. Hogges

    Hogges Been here awhile

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    Sorry that I kind of hijacked this threat with my bashplate comment. But to complete this thought in the interest of research, here is my 2009 OEM bash plate, dirt and all, with the aforementioned two external torx screws and a regular hex nut. Doesn't really encourage people to perform their own oil changes, does it? But then again I am always happy to find I need to buy yet another tool I don't yet own...

    IMG_0158.JPG
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  16. lewisjr1

    lewisjr1 Long timer Supporter

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    On a 10+ y/o bike, any chance those bolts have been replaced or mismatched during a prior maintenance... Never mind...

    Looking at the fiche, it's clear that the '09 reg. GS models are spec'd for three (3) different fasteners to secure the "UNDERRIDE PROTECTION" plate;

    fiche part no. 2 = 07 12 9 904 559 ASA-BOLT - M8X20-U1-8.8 0.03 1 $1.50;
    fiche part no. 3 = 07 12 9 904 072 ASA-BOLT - M6X10-8.8-ZNS3 1 $2.23; and
    fiche part no. 4/5 = 11 11 7 682 158 VIBRATION DAMPER - M8 0.04 2 $12.68.

    Fritz always could change his mind for reasons that the rest of us could only scratch our heads over.
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  17. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    MUCH easier, find an appropriate bolt with a 10mm head and be done. Why make it so complicated.

    BTW, I have never seen a Hexhead like that. I doubt those are original equipment. They don't even have the correct washers on them.
    [​IMG]
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  18. Hogges

    Hogges Been here awhile

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    @lewijr1: who is this Fritz?
    @jim: here is a Max video showing that my hardware is indeed original, he points out the E-10 and E-8 needed:
    But agree, using screws which can be opened with the on-board torx Tools would make more sense.
    #18
  19. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    Seriously? You still believe the dealer?
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  20. Hogges

    Hogges Been here awhile

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    Haha, well shall we allow him to be right just this one time? ;-)
    After doing our own double checking in the service manual, of course.
    Have a good weekend you all.
    #20