Tightening R1200GS spokes

Discussion in 'GS Boxers' started by luv2lean, Dec 26, 2007.

  1. luv2lean

    luv2lean not lost til out of gas

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    I understand "trueing" the GS wheels should be left to a pro, but the regular maintenance schedule calls for tightening loose spokes and dont believe bmw techs send these wheels to woody or the like for regular maintenance. I have a few dead tone spokes on my 1200GS and want to snug them up, but am having some difficulty with loosening the set screws inside the spoke. They appear to fit best with a 2 mm allen, but that is a little loose and i am concerned about stripping the allen head. Does any body have some experience or secrets i should know about how to get the set screws loose?
    Thanks
    #1
  2. Anorak

    Anorak Woolf Barnato Supporter

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    I think that little buddy is 2.5mm.
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  3. luv2lean

    luv2lean not lost til out of gas

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    i cant get a 2.5 in there
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  4. Anorak

    Anorak Woolf Barnato Supporter

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    Well, I got motivated to go into the garage and check on an 1150 wheel I have. It is 2mm. I looked up the part #07119904003 and it is the same for all wheels back to the R100GS. Use a straight type allen wrench not ball end.
    #4
  5. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    2mm works, but remember that the allen is just a set screw, and NOT the adjuster. Many people don't touch the allen, or do not know about it.

    The torque is only 3nm, so barely snug.

    The technique is to use a wrench on the spoke nut and tighten it in very tiny increments until you get the twang back, then tighten the set screw.

    DO NOT OVER TIGHTEN THE SPOKE! If you do, wobbles will visit you!:deal :D

    Jim :brow
    #5
  6. rdcyclist

    rdcyclist Long timer

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    The grub screws are 2mm. Make sure you're using a good quality wrench (I like Bondhus) and the heads and threads are clean. Liquid wrench is your friend. If any of the grubs don't loosen, you can just break the spoke nipple loose and replace it with a new grub and nipple.
    #6
  7. luv2lean

    luv2lean not lost til out of gas

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    really appreciate the comments.
    thanks much
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  8. michnus

    michnus Lucky bastard Supporter

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    Jim the new Hayens manuel I got for Christmas note the torque as 6nm. :deal


    My 1200 rear got a small amount of run out, problem is in the entire South Africa there's not ONE person that can help in straightening it out, and BMW SA say it's better to replace wheels. I tied all the spokes to 6nm but the run out is still there, it's not a problem when riding, maybe it's best just to leave it?
    #8
  9. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    The 2mm grub screw is 6nm?:huh

    I'll check my BMW manual, but that would be similar to the lock nut on the valves, or the valve cover BOLT. I'm thinking that isn't right. I never trust the aftermarket manuals for torque values.:deal

    Oh, and tightening the spokes evenly by torque is a good way to mess up the true of the wheel.

    Jim :brow
    #9
  10. michnus

    michnus Lucky bastard Supporter

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    Just had a look again to make sure, sorry I had the cat by the balls, they Hayens list it on page 1.2 as 4nm. :augie


    Jim
    So help me out how am I suppose to do it? :D
    #10
  11. rideLD

    rideLD The further the better!

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    I think the schedule calls for checking the spokes and only tightening if necessary. I check mine by tapping them with a wrench and listening for the tone. If the tone is high pitch they are too tight, if the tone is flat they are too loose. A nice mid tone is perfect. I have personally never had to tighten one spoke on either GS that I have owned. I once asked a BMW tech about it and he said about 1 out of 20 bikes ever needs to have a couple of spokes tightened and those are usually bikes with a slight hop or bend in the wheel from abuse.
    #11
  12. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    According to Woody, of Woodies Wheel Works, THE man for BMW spoked wheels:

    Jim :brow
    #12
  13. michnus

    michnus Lucky bastard Supporter

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    Jim, thanks for the trouble getting the information. Both my 1200's have the same problem with the rear wheel running out just slightly.
    #13
  14. luv2lean

    luv2lean not lost til out of gas

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    My spokes are now tight thanks to the helpful information on spoke service provided by Woody.


    I found the most important tip was to back the nipple off 1/4 turn before loosening the set screw.
    #14
  15. michnus

    michnus Lucky bastard Supporter

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    The spoke service by Woody, is it a write up on the forum, where can I get hold of that info from Woody?
    #15
  16. luv2lean

    luv2lean not lost til out of gas

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    See JimVB's post above for woody's write up
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  17. Clinton Lesch

    Clinton Lesch n00b

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    had an issue with front wheel running side to side +- 8mm felt it on the bars after fitting new tyre
    got same response from BMW (15k for new wheel) "nobody in durban can do it"
    Busy having a go at resetting it myself, almost there. runout currently under 1 mm.
    will get it better still.
    #17