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Thread: 1978 R100RS Rear Fender

  1. #1
    Registered User QUICKDRAW's Avatar
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    1978 R100RS Rear Fender

    I need to do some paint work on the rear fender of my R100RS.
    Is it possible to remove the rear fender without removing the rear wheel ?

    Thanks in advance
    Jim Lynch
    1994 K75S, 1978 R100RS Motorsport

  2. #2
    Registered User 6322's Avatar
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    Much easier to just remove the rear wheel.
    Gary Phillips - #6322
    Wildland Firefighter, Retired, Riggins, ID
    Heartland Moto Locos BMW Riders
    '77 R100/7 Dirt Hack, '83 R80ST, '85 K100RS w/EML, '00 R1100RS

  3. #3
    Registered User QUICKDRAW's Avatar
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    Thanks Gary I'm aware that might be the best way however this new to me R100RS has a 120/90 rear tire and from what I've read can be a bear to remove. With the bike on the centerstand my thought was to raise the rear wheel, disconnect the fender, drop it down onto the tire then rotate the tire backwards to remove the fender from the bike. Just looking for confirmation that this would work or not.
    Jim Lynch
    1994 K75S, 1978 R100RS Motorsport

  4. #4
    Sir Darby Darryl Cainey's Avatar
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    It is possible, but much easier with the wheel removed.

    just deflate the tire first!
    Ambassador Emeritus BMW MOA Ontario Canada
    Niagara Riders
    Knights of the Roundel #333
    1977 R100RS, (Retired) 1993 R100GS

  5. #5
    Liaison 20774's Avatar
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    Quote Originally Posted by Darryl Cainey View Post
    just deflate the tire first!
    Also:

    - tie the center stand to the front wheel so the stand won't collapse
    - put thin pieces of cardboard on either side of the tire where it will contact the inside wheel center (you probably have the rear disk?) and a piece on where it will contact the left side swingarm. This helps as you wriggle the tire out the back.
    Kurt -- Forum Liaison ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  6. #6
    '99 '03 '06 National Co-Rally Chair Friedle's Avatar
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    78 rear fender removal

    Not a lot of room there. Might be able to do it...........if you have hands about the size of an average 5 year old. Otherwise just listen to what people are telling you. Deflate the tire, tie up the center stand so the bike won't fall forward, and take your time. It's not rocket science.

    Friedle
    Ride fast safely

  7. #7

    four bolts to remove leave the wheel on

    The hardest part is getting your hand and wrench up between the tire and fender to get the bolts loose and then to reinstall them, just unplug the tail light harness and remove that later. It can be done as I have done it a whole bunch of times. One trick is to use a 1/4 inch drive ratchet with a deep well 10mm socket to get at the underside of the fender to hold the bolts and them same for the top side to loosen the nuts. The fender comes out fairly easy after that. If your painting it or doing touch up it would be wiser to remove the rear wheel to reduce the damage potential.

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