Airhead Dakar Rally Bike

Discussion in 'Airheads' started by bromax.ca, Jun 6, 2013.

  1. bromax.ca

    bromax.ca Been here awhile

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    Apr 6, 2013
    Oddometer:
    107
    Location:
    Vancouver Island, Canada
    #1
  2. bromax.ca

    bromax.ca Been here awhile

    Joined:
    Apr 6, 2013
    Oddometer:
    107
    Location:
    Vancouver Island, Canada
    [​IMG]
    [​IMG]
    [​IMG]
    #2
    windfaces likes this.
  3. hardwaregrrl

    hardwaregrrl Can't shoot straight Supporter

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    Jan 26, 2006
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    Atlanta
    Whoa!:eek1

    That is slick and sick looking!:thumb.....details brother!:tb
    #3
  4. Deadly99

    Deadly99 Fast and Far

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    Wow...


    :lurk
    #4
  5. chollo9

    chollo9 Screwed the Pooch

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    Jul 7, 2003
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    Silk Hope, NC
    Very nice metal work.
    #5
  6. befindlichkeit

    befindlichkeit n00b

    Joined:
    Jan 10, 2013
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    6
    Location:
    West coast, Sweden
    Dude, man! That shit is tight!

    Cool frame! Which engine is that? And what forks and fork...holders, whatever you english speaking world call that stuff, are those?

    Please share more, this is highly interesting!! :)
    #6
  7. bikerfish

    bikerfish flyfishandride

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    Aug 18, 2010
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    western pa
    very cool, that fairing would look super cool if you polished it!!!!
    #7
  8. when the road bends

    when the road bends hello

    Joined:
    Oct 19, 2007
    Oddometer:
    464
    Location:
    Seattle
    :eek1

    guesses:

    x-challenge forks?

    Wow that is quite an inspiring build. r1100gs swingarm?? engine case from an ural with bmw cylinders?

    Tell us more !?!?
    #8
  9. Prutser

    Prutser Long timer

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    Aug 5, 2012
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    The Dutch swamp
    Thats just like the bike I started building. Looks great :evil
    #9
  10. bromax.ca

    bromax.ca Been here awhile

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    Apr 6, 2013
    Oddometer:
    107
    Location:
    Vancouver Island, Canada
    The bike was an R100 GSPD. I rode it for a little on local logging/dirt roads and thought it needed some changes made. As those things go, one thing led to another. To get more ground clearance and to optimize the swingarm angle, I took 2" out of the front down tubes of the frame. The traditional way to raise the engine did not appeal to me since it cuts off access to the oilfilter. Now I had to make a new upper back section so my feet can still touch the ground. The frame is just tack welded and I will still have to cut the rear and make all the HPN type mods. I rebuilt the engine and removed some material from the block. The forks are from a Yamaha YZ450, the swingarm from an 1100 and the final drive is the original one. The wheels are the original set and the rear is centered but just touching the swing arm. I will be getting a Dunlop 606 for the back and will most likely offset the wheel by about 5mm. The shaft is a combination of airhead and 1100 shaft parts. The two end sections, one bolting to the tansmission and the other connecting to the final drive are airhead. The two center sections are oilhead. I am planning on welding another fuel tank for under the back section. I will make an instrument tower, not sure what will go on it other than 2 Rigid D-series lights. I have worked with just enough fiberglass to know I don't like working with it, so I made the fairing, tank and rear fender out of aluminum. The weight should be compatible when all done.
    #10
  11. when the road bends

    when the road bends hello

    Joined:
    Oct 19, 2007
    Oddometer:
    464
    Location:
    Seattle
    #11
  12. Deadly99

    Deadly99 Fast and Far

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    :lurk
    #12
  13. bgoodsoil

    bgoodsoil Dare to be Stupid

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    Jul 9, 2008
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    Washington, DC, USA
    That's the coolest rally fairing I've ever seen :thumb How did you make that thing?!

    How's that alternator cover attached? Looks like you've cut off the spots for the original bolts.

    Thanks for posting up the pictures. We will, of course, pester you non-stop for more no matter how many you post up :D

    :lurk
    #13
  14. Beater

    Beater The Bavarian Butcher

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    Sep 3, 2009
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    3,708
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    Atlanta, GA, USA
    holy crap

    Please, more pictures ... and tell us about the frame mods. Where'd you take out the two inches? Any pics? Did you design the rear shock mount to look like the 1100GS frame mount?

    That's MASSIVE. Carry on.

    :drif
    #14
  15. globalt38

    globalt38 "A Fist Full of Throttle" Super Supporter

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    Apr 10, 2013
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    2,337
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    Wow! Talk about making a big splash with one of your first posts/threads! :eek2:kboom Very impressive, interesting, and attention catching obviously. Looking forward to how it turns out!
    #15
  16. RecycledRS

    RecycledRS Along for the ride

    Joined:
    Nov 2, 2008
    Oddometer:
    1,050
    Location:
    Vancouver Island
    Love what you've done so far! Hope you have more bracing planned for the upper shock mount though.
    #16
  17. camgregus

    camgregus riding gently now Supporter

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    Feb 24, 2006
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    on the banks of the mighty mississippi, AR side
    :lurk
    #17
  18. VietHorse

    VietHorse Long timer

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    Nov 28, 2011
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    Recalculating... recalculating.... HCMC-Vietnam :)
    It looks like a real Knight!
    Hope the seat would not be just like that!! :evil :rofl

    [​IMG]
    #18
  19. bromax.ca

    bromax.ca Been here awhile

    Joined:
    Apr 6, 2013
    Oddometer:
    107
    Location:
    Vancouver Island, Canada
    Cutting 2" out of the front down tubes
    http://[​IMG]

    I cut the frame, most of the way through, where the upper battery box brackets are. It served as a hinge point when joining the frame in the front after taking a section of 2" out.
    http://[​IMG]

    Then I made some new frame members for the back-top
    http://[​IMG]

    Then a rear section
    http://[​IMG]

    http://[​IMG]

    I rebuilt the engine and removed some material
    http://[​IMG]

    There is still lots to be worked out and the frame still needs bracing, etc. Progress is slow but steady. I try to only work on it when I have the frame of mind to enjoy it. I spend more time starring at it, trying to figure out what to do, than actually working on it. The most important piece of equipment in my shop is a very comfortable chair.
    I will try to take more photos and get better at documenting.
    Thanks for all the kind words.
    #19
    jamesbrownslegs likes this.
  20. Stagehand

    Stagehand Imperfectionist

    Joined:
    Oct 6, 2004
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    33,302
    Location:
    Turicum
    Really awesome, and inspiring. How did you get the lower frame around the pushrod tubes?

    No real change in the swingarm pivot/steering head geometry?
    #20