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Skid plate - oil pan f850GSA

Discussion in 'Parallel Universe' started by Kwafo, Aug 3, 2020.

  1. Kwafo

    Kwafo Two wheeler

    Joined:
    Mar 3, 2013
    Oddometer:
    50
    Location:
    Netherlands a.k.a. flatland
    Hi all,

    I would like your opinion about the skid plate attachment to the bike.

    The BMW f850 GS(A) has no tubing running onder the engine. All hits are taken by the skid plate and transferred to the oil pan.

    My dealer told me that my engine is sweating between oil pan and engine housing. This got me wondering. How strong is the oil pan, and how should the skid plate be mounted to prevent further damage? Whatever skidplate you mount, the hits will always be transferred to the engine, am I right?

    I now have ridden close to 40K km and it seems a little soon for the oil pan to go sweating ;-)

    Have not done and tree (stump) skids or something close to that, but the rear shock is kinda soft what causes the belly (with the plastic skidplate) to hit te ground when riding in bumpy terrain with holes around 80 km/h.
    #1
  2. JRWooden

    JRWooden Homeless motorcycle vagabond ... and ... loving it

    Joined:
    Jul 5, 2008
    Oddometer:
    6,425
    Location:
    The great state of confusion
    The older F650/f700/F800GS were designed the same way ...
    No frame mounting points for the skidplate just to the engine.
    On the older bikes the main mounts are four Isolation bushings (metal stud on each end big chunk of rubber in the middle)
    So on those bikes, (and if you check the parts fiche I'll bet you find similar design for the 850)

    yeah ... the whack gets transferred to the oil pan ... but in a dampened/buffered way ... :1drink

    But seriously, I've been here since the older models were announced and never heard of an oil pan fracture due to transferred impact from the skid plate...

    that's all I got :drink
    #2
  3. Kwafo

    Kwafo Two wheeler

    Joined:
    Mar 3, 2013
    Oddometer:
    50
    Location:
    Netherlands a.k.a. flatland
    Hi JRWooden, thanks for your thoughts, it has indeed 4 rubbers that dampen the impact. Lets see how the oil sweating will develop, hopefully no big leaks. If the old bikes could cope with it, lets hope the new bikes will too.
    #3
    JRWooden likes this.
  4. Loutre

    Loutre Cosmopolitan Adv Super Moderator

    Joined:
    Nov 28, 2010
    Oddometer:
    13,671
    Location:
    :o)
    Only pita with the old ones was the Rubber thingies which broke down and would be impossible to un screw afterwards. Remember to grease the attachement points to the engine to give you less headache down the road.
    #4
    Kwafo likes this.
  5. FredRydr

    FredRydr Danger: Keep Back 300 Ft.

    Joined:
    Aug 16, 2005
    Oddometer:
    4,186
    Location:
    Carlisle Pennsylvania USA
    ...and check the condition of those bolts with rubber thingies annually. I had an aftermarket aluminum skid plate attached to those original BMW bolts since I had the bike new in 2009, and I learned to watch them when I discovered the rubber of two had completely decomposed in the first couple of years, presumably from oil and heat and a few hits. I hadn't seen that the plate was just dangling; lucky I caught it before it made a scene!
    #5
    JRWooden likes this.
  6. Kwafo

    Kwafo Two wheeler

    Joined:
    Mar 3, 2013
    Oddometer:
    50
    Location:
    Netherlands a.k.a. flatland
    thanks for the tip
    #6
  7. oakcutter

    oakcutter Been here awhile

    Joined:
    May 27, 2018
    Oddometer:
    188
    Location:
    Massachusetts
    Black Dog Cycle Works makes an awesome bash plate. Can't go wrong with it.
    #7
    BlackDogCycleWorks and MCMXCIVRS like this.
  8. Kwafo

    Kwafo Two wheeler

    Joined:
    Mar 3, 2013
    Oddometer:
    50
    Location:
    Netherlands a.k.a. flatland
    it is gonna be a blackdog or altrider skidplate. Altrider are more gentle to the wallet and I have good experience and no complaints with their products.

    Blackdog seems top of the line and heavy duty
    #8
    BlackDogCycleWorks likes this.
  9. oakcutter

    oakcutter Been here awhile

    Joined:
    May 27, 2018
    Oddometer:
    188
    Location:
    Massachusetts
    The mounting system on the BD is awesome. It's a well thought pan and customer service is the best. Real people. IMG_20200730_145559790.jpg
    #9
    BlackDogCycleWorks likes this.
  10. BlackDogCycleWorks

    BlackDogCycleWorks Been here awhile Super Supporter

    Joined:
    Oct 28, 2014
    Oddometer:
    983
    Location:
    Sandpoint, ID & Mulege, Baja
    #10
    oakcutter likes this.