JTH's HD 883 Dual Sport'ster conversion

Discussion in 'Some Assembly Required' started by JimmyTheHog, Feb 4, 2011.

  1. kellymac530

    kellymac530 motorcycle addict

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    Jimmy,
    That is a great pic. Your bike is custom dual sport art. Just plain trick and cool.

    If you get time, can we get some shots of your fender slots?

    Did you cut slots and then heat and bend them open or what? They look like they protrude back from the fender.

    Keep it up sir.
    :clap
  2. DC Chad

    DC Chad Been here awhile

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    stunning beauty of a bike :1drink
  3. JimmyTheHog

    JimmyTheHog Low Speed Adventurer

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    Theres nothing fancy with the slots - I just had some 3/8" slots milled in. Here's a pic of them. Im going to do some temp measurements with the slots and then tape them up and compare to see the improvement.

    There is an aftermarket fender that has pre-formed slots posted somewhere in this thread though.

    [​IMG]
  4. kellymac530

    kellymac530 motorcycle addict

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    Thanks Jimmy.

    PS: There are WAY too many tits on that front tire....you need to get out and ride. :wink:
  5. JimmyTheHog

    JimmyTheHog Low Speed Adventurer

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    Haha! - Youre right on that!!! I just put these tires on not too long ago (2nd set), then it got cold and rainy - im a cold weather wimp. I know, im in sunny CA, stop complaining and get out and ride :freaky
  6. kellymac530

    kellymac530 motorcycle addict

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    I am in Sunny Southern California and it has been crazy cold here for weeks. It has been awesome the last 4 days or so...go riding.

    :lol3

    I have been able to get off the couch this last week a bit so I officially started my RT to GS"B" project...1/2 hr incriments until I am cleared by my ortho surgeon...but tinkering is giving me something to do. :clap
  7. dpetersak

    dpetersak Adventurer

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    It's like a work of art, Jim, that keeps getting better. I'm working on putting an Acerbis fender on mine, also slotted.

    [​IMG]

    [​IMG]
  8. JimmyTheHog

    JimmyTheHog Low Speed Adventurer

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    That's looking good! But your rear spring rate may be a bit too stiff :evil
  9. JimmyTheHog

    JimmyTheHog Low Speed Adventurer

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    Some fun with CAD while waiting for new front end parts to be completed. This is the new 6 gal gas tank rendered in Autodesk Showcase.

    [​IMG]
  10. DC Chad

    DC Chad Been here awhile

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    Nice VERY Nice:1drink
  11. Slvrtundevl

    Slvrtundevl Been here awhile

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    Simply AWESOME!
  12. jub jub

    jub jub frumiousbandersnatch

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    My thoughts exactly. Very nice build!
  13. JimmyTheHog

    JimmyTheHog Low Speed Adventurer

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    Heres our new Fly Screen Wind Deflector for the SC3 Adventure. Its made from 5052-H32 Aluminum and Polycarbonate. Its weighs about a pound and is designed to protect the gauges from branch or flying debris damage and deflect wind from the body. The seam gap shown at the bends will be welded and ground smooth.

    Its being fabricated now. Hope to have it on the bike in a few weeks.

    [​IMG]
  14. DRjoe

    DRjoe Long timer

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    This is all far too impressive.
    Can't you bodge something up with some silicone and race tape just to make us feel better about ourselves.
  15. dpetersak

    dpetersak Adventurer

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    Hey Jim,

    I know you're at 18mm of offset, but I'm wondering if you've tried 22mm, or if the difference between 18 and 20 was significant. I need to get the triple clamps away from the rubber-mount frame as much as possible to maximize my turning radius and avoid any frame alterations. This will reduce my trail, but I'm hoping that with a 30 degree rake the effect will be minimal. More responsive, yes, but not unstable. Thanks for your help.

    Cheers,

    Dave
  16. JimmyTheHog

    JimmyTheHog Low Speed Adventurer

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    Hey Dave - Ive just had the 18mm offset triples on the bike, so I cant say for sure. I know when I was playing with the rear shock height & fork height (up or down in the triple clamps), it did have a pretty significant effect on the stability of the bike, but only at around 60-70'ish mph. The steeper the rake and the taller the bike, the less stable it was and would get some wobbles. At the lower speeds, not a problem.

    My rough geometry layouts show the following trails at 30deg rake:
    18mm = 5.57" trail
    20mm = 5.50" trail
    22mm = 5.43" trail

    All still pretty generous trails, but we cant neglect the rake change too. As the offset increases, the rake decreases. Its subtle, but subtle changes in geometry at high speeds can be enough to shift the resonances.

    So, you may just have to go there and see how it does. Kind of like an aircraft test pilot - get going at speed and see what happens. :eek1

    For turning radius, I wanted to improve mine too, so my new triple clamps moved the bolt clamps to the front so I would get more clearance on the bottom clamp to the frame. It maybe bought me a 1/4" or more which doesn't seem like much, but in radians it should help a bunch. I also integrated a Scotts steering stabilizer. Even know the bike is stable at speed, bumps can upset it and get some wobble. So, if you find the 20-22mm is unstable, you can always try a stabilizer.

    Hope this helps.
  17. JimmyTheHog

    JimmyTheHog Low Speed Adventurer

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    Ha ha! - you should see the old truck I drive :lol3 I put all my efforts in my passion, and the rest of my stuff is held together with zip ties, wire and duct tape. I guess its just priorities.
  18. dpetersak

    dpetersak Adventurer

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    Thanks, Jim. You're the man!
  19. Bambi

    Bambi Been here awhile

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    Hello out there,
    concerning this:
    '
    Quote:
    <TABLE border=0 cellSpacing=0 cellPadding=0 width="100%"><TBODY><TR><TD class="dg-bbcode dg-bbcode-quote">Originally Posted by DRjoe [​IMG]
    This is all far too impressive.
    Can't you bodge something up with some silicone and race tape just to make us feel better about ourselves.

    </TD></TR></TBODY></TABLE>
    Ha ha! - you should see the old truck I drive :lol3 I put all my efforts in my passion, and the rest of my stuff is held together with zip ties, wire and duct tape. I guess its just priorities.
    <!-- / message --><!-- sig -->__________________
    Jim'

    Applause to both of you, you made my day!!! :rofl
    Kind regards, Bambi
  20. JimmyTheHog

    JimmyTheHog Low Speed Adventurer

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    The designs usually don't start off looking polished in CAD. Its a progression. The design process for me starts off with an abstract vision of what I want. Then I try different things until it looks and works right. For the fly screen, it took a cardboard mockup, then a paper scaled model to hold and see how it looked, and then the full finished 3D model on the bike assembly.

    Heres a pic of the progression... Also, the aluminum tube behind the cardboard is the mockup for the crashbars.

    [​IMG]