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Thread: Cortech tankbag to BMW mount

  1. #1
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    Cortech tankbag to BMW mount

    I got a stock BMW tankbag with my used '09 1200RT, the map case was yellowed, and the main zipper broke. I like the BMW mount and thought maybe I could put a different bag on it. I stopped at a motorcycle shop looking for possible unit, I found a Cortech 12L tankbag marked down to $50 because it had no harness straps. I know it is not huge like the BMW bag, but I have top box and panniers. I wasn't looking for large amount of storage, just a handy place to keep frequently used things.
    Cortech 12L.jpg
    Bingo, it sat on the stock mount pretty good. I cut all the buckles off the bag. Made a pattern of the floor of the bag out of posterboard, when I was happy with that pattern, I transferred it to some black plastic sheet. 
    pattern.jpgplastic sheet.jpg
    I heated the sheet and formed it to the curve of the stock mount. I drilled the holes, attaching the plastic to base working from one end to the other. 
    plastic bolted.jpg
    Next I removed the plastic, placed it in the bottom of the tank bag and used an awl to poke through the tankbag and the plastic sheet. I used some #6-32 x 3/4" stainless screws with nylon lock nuts. When I got it tightened up I trimmed the excess length with a Dremel.
    attached to base.jpg
    I cut the stitching loose from the pad that normally goes under a strap on bag. I used the thin pad that was inside, and glued it to the black plastic to smooth and pad the bumps from the nuts. I then used a piece of the rubber gripper material from the bottom of the pad to line the inside of the tank bag.
    lining.jpg
    (disclaimer: use caution with hot glue. I did manage to get it on my fingers a couple times
    I think it came out pretty good. It may have the added feature of adjusting the windshield at full lock left turns.

  2. #2
    Fortis Fortuna Adiuvat Omega Man's Avatar
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    Excellent. Thanks
    OM
    "You can do good or you can do well. Sooner or later they make you choose." MI5
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    2009 F800GS 1994 TW200

  3. #3
    Registered User pappy35's Avatar
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    That's awesome. Exactly what I was looking to do as my map panel has yellowed significantly also. Post a picture of that one mounted to the bike if you can.
    '13 R1200RT 90th Anniversary Edition

  4. #4
    Registered User Moto316's Avatar
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    Nice job, quality workmanship! Thanks for the great tutorial with pictures.

  5. #5
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    I will get a pic of it mounted hopefully later today, after work.

  6. #6
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    Ok got a couple pics taken of the bag on the bike. It does contact the handlebars on full lock turns. It doesn't honk the horn, but it does lower the windshield on full left.

    Sent from my Pixel XL using Tapatalk

  7. #7
    Registered User pappy35's Avatar
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    That's awesome. As soon as I can stash away money that the wife doesn't know about I'll be getting one of those! Thanks for the pics!!!
    '13 R1200RT 90th Anniversary Edition

  8. #8
    Rocky Bow BMW Riders #197 bogthebasher's Avatar
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    Very nice job and the style of the bag really suit the bike. Thank you for posting since a lot of original owners of the bag that we got ten years ago are facing similar issues as yourself.
    Ken Dittrick
    2008 R1200RT (Biarritz Blau)


    Excuses are the rocks upon which our dreams are crushed - Tim Fargo

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