airhead dirtbikes ???

Discussion in 'Airheads' started by Loadedagain, Oct 14, 2004.

  1. Beater

    Beater The Bavarian Butcher

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    3,701
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    Atlanta, GA, USA
    Yeah ... Did you know that 'Bing' is German for 'leak'? Just sayin.


    :hide
  2. gsd4me

    gsd4me 90% bluff

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    Dec 11, 2005
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    7,944
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    Brisbane, Australia

    After running a FI bike for so many years, half the time I forget to turn them off, the other half, I forget to turn them on. :rofl
  3. Stagehand

    Stagehand Imperfectionist

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    Oct 6, 2004
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    Shawangunks

    :lol2
  4. tft

    tft Been here awhile

    Joined:
    Nov 30, 2012
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    657
    Location:
    Austin, Texas

    What's the story on the headlight fairing?
  5. hardwaregrrl

    hardwaregrrl ignore list

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    lynx
  6. victor850r

    victor850r n00b

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    Sep 26, 2012
    Oddometer:
    7

    You are totaly insane dude¡¡¡ that is a sport bike frame ¡¡ there is a lot of room easily you could store 2 helmets under the gas tank¡
  7. Airhead Wrangler

    Airhead Wrangler Long timer

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    Back in Seattle, FINALLY
    Um.... yeah... and good luck finding a forks and a wheel that won't hit the engine:

    [​IMG]
  8. gsd4me

    gsd4me 90% bluff

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    Dec 11, 2005
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    Location:
    Brisbane, Australia
  9. Stagehand

    Stagehand Imperfectionist

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    Oct 6, 2004
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    Shawangunks
    Leading link front end? :dunno
  10. Muddy3

    Muddy3 Muddy

    Joined:
    Mar 12, 2005
    Oddometer:
    47
    Location:
    Estes Park
    Colorado State Patrol Inspection tomorrow morning. It's a great little "parts" bike:
    Modified 1989 BMW R100RT Mono-lever Frame. HPN style frame gussets throughout.
    1992 R100GS motor with 800cc cylinders and 32mm Bings.
    Paralever Swingarm.
    YZ450F front end.
    347lbs with oils but zero fuel.
    Built for around $2500.
    [​IMG]
    [​IMG]
    [​IMG]
  11. AKjeff

    AKjeff Long timer

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    May 28, 2006
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    Nice build, good luck with the inspection.
  12. bgoodsoil

    bgoodsoil Dare to be Stupid

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    Nice! Good job on the budgeting. Wish I had built my bike rather than buy it but I didn't know how back then. The front looks kinda tall, are you going to do any leveling on the suspension?

    Wow, how did you get it down to 347? If you don't mind my asking, how did you weigh it? It sounds lower than what I've heard these things are.
  13. Muddy3

    Muddy3 Muddy

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    Mar 12, 2005
    Oddometer:
    47
    Location:
    Estes Park
    I thought the forks looked tall in that photo too. Sits pretty level in my garage. Suspension will take a bit of sorting. I've only got an hour or so of off-road riding on this bike. I've owned 3 R100gs's over the years and my impression so far is that this bike is light years ahead of a stock GS in off-road handling and I think that I can make it better.

    I used a set of aircraft scales to weigh it. About 10 years ago I built and flew a competition aerobatic airplane. I still have the sign in my garage from when I built that plane that says: 10lbs x 10g's = an airplane that sucks. You have to look at every piece you add as an opportunity to cut weight. Remember, by the time I add 6.4 gal of fuel we're talking 390lbs.
  14. bgoodsoil

    bgoodsoil Dare to be Stupid

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    Did you do the gussets yourself?
  15. Muddy3

    Muddy3 Muddy

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    Mar 12, 2005
    Oddometer:
    47
    Location:
    Estes Park
    I cut all the gussets, tack welded them in place and had Advanced Alloys in Longmont, CO do the final welding. Those guys are unbelievable! They specialize in aircraft parts.
  16. Airhead Wrangler

    Airhead Wrangler Long timer

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    Really? How'd you weigh it?
  17. Kokopelli

    Kokopelli Yeah, right!

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    May 2, 2003
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    4,856
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    Rapaura
    Wow, that's one of the really good looking bikes. I'd put it in the top 5 that I've seen.
  18. bgoodsoil

    bgoodsoil Dare to be Stupid

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    That's a nice pile of parts! What did you do for the triples? What are you running your springs at?
  19. Stagehand

    Stagehand Imperfectionist

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    sub 350 is pretty amazing for a paralever. The only parts that look like they're not stock heavy as crap is the forks.

    I'm going to have ot re-weigh the PD somehow.

    CUrious as to why you'd use 800's in a 1000 motor unless you had better access to the 800's.


    what rear shock?


    YES I WANT TO TWIST IT IN ANGER! :D
  20. hardwaregrrl

    hardwaregrrl ignore list

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    :lol3

    Wow! Looks sweet, Muddy. My bike will never look that nice but that because I ride the shite out of it. Come back in a few months with a pic after you do the same, oh it's gonna be fun!! Paint or powdercoat on the frame?