Could someone tell me the size of the bolts on the R100GS undercarriage bash plate?

Discussion in 'Airheads' started by smorgasgeorge, Dec 6, 2011.

  1. smorgasgeorge

    smorgasgeorge Adventurer

    Joined:
    Sep 25, 2010
    Oddometer:
    63
    Location:
    Portland, OR
    Not the center stand bash plate but the oil pan protector.
    I need to remove it and my ratchet set is apparently wanting.
    And I can't find this in the fiche.
    My apologies for the poor terminology, I'm new here....
    Thanks!
    #1
  2. 97oilhead

    97oilhead Been here awhile

    Joined:
    Mar 5, 2008
    Oddometer:
    189
    Location:
    Southern Ontario, Canada
    Do you mean the size of the head on the flattened bolts?

    If so I seem to remember them being around 18mm, you have probably tried 17 and 19 I assume?
    #2
  3. Wolfgang55

    Wolfgang55 Long timer

    Joined:
    Dec 24, 2006
    Oddometer:
    3,987
    Location:
    Only N flowin river emptying in an ocean
    Vice grips? Just be sure they're made in Germany.
    #3
  4. smorgasgeorge

    smorgasgeorge Adventurer

    Joined:
    Sep 25, 2010
    Oddometer:
    63
    Location:
    Portland, OR
    Yes, I mean the size of the head on the flattened bolts.
    My kit goes up to 19mm so I'm pretty sure I tried these but I'm not looking at it right now.
    It seems like this would be a pretty common removal, but the bolts are recessed so I can't wrench them.
    Am I missing something here?
    Thanks for helping out a noob.
    Cheers
    #4
  5. Renner

    Renner combustophile

    Joined:
    Jul 11, 2007
    Oddometer:
    3,024
    Location:
    sunny SoCal
    22mm
    as are many airhead axle nuts
    #5
  6. Mark Manley

    Mark Manley Long timer

    Joined:
    Apr 3, 2010
    Oddometer:
    1,434
    Location:
    On tour in North America
    I think they are actually 24mm from memory.
    #6