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Thread: Dirt Bike trailer self build...done

  1. #1
    Join Date
    Sep 2007
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    Planet earth- currently Bogota Colombia
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    Default Dirt Bike trailer self build...done

    Well I got fed up cadging lifts to the local dune area and the wifes in Venolandia visiting family so the welder came out

    off road capable.....well I used Hilux leaf springs,,, does that count !


    pictured here it only has the main, I'll be adding the seconds leaf's the day after next, as they won't take the weight of two bikes without going flat.

    They are second or third hand and well used.

    50mm x 3mm box main frame members
    50mm x 1.2mm cross members

    Axle is home made using 3" X 1/8" steel pipe and two off Toyota bolt on hubs
    (corola rear type)

    top is 3 mm chequer plate

    ramp----I'm re-using my grating sand ladders

    Its a two or one design, based on the size of a CRF 450X with a desert gas tank 18 ltrs !

    Bike stands alone when slotted in for easy 1 person loading

    The added springs should level it out a bit more





  2. #2
    Join Date
    Jul 2009
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    2,290
    Man. I really like it. Very cool build!

  3. #3
    Join Date
    Sep 2007
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    added the the second leaf today, now its perfect for two

    Thanks for the comment !

    Its apreciated !


    as the dog does'nt say much and the wifes away

  4. #4
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    Mar 2008
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    Yup, looks like a good setup. How wide is the deck?

  5. #5
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    frame is 50 " wide , to use the 1 sheet of alu

    slots are 36" centers apart, which is just over my handlebar and guard width.

    I wanted two bike room but not a huge trailer so its paired down to the min.

    construction wise I could have gone lighter box for the sides, but welding tin cans is a pain.

    cost diference was $ 15 1.2mm V's 3mm.........

    the tie down outrigger is 10" from the frame either side.

    The bikes self support when being tied down, which when you load yourself is always a worry if there's no support

  6. #6
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    Mar 2008
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    50" wide on the outside of the frame, inside, centerline? Must be outside, as I imagine you used a 48" wide piece of aluminum, with 1" frame exposed on either side?

    Can you get 3 bikes on it? I've done it on a 4x8 trailer before. It's not fun, but I've done it. The middle one goes in backwards.

  7. #7
    Nice. Might consider off setting the middle bracket rearward to offset handlebar conflicts if the deck cutout will allow it.

  8. #8
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    exactly bed width is 48 +1 +1

    the middle slot is for solo bike use, If i needed to do 3 the middle bike gets reversed, and would need an adapter as the rear tyre won't slot in

  9. #9
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    Looks nice and a good design.
    O3 Tundra limited with ATTITUDE,fire truck air horn,extream outback compressor,Ham radios,Motorola commerical VHF,UHF, lowband,800mgz radios with 100 watt pa system.Dual battries, ,KC daylighters,rock lights,RCD 6" lift,air chucks front and rear,tow truck jumper cables front and rear.CB radio for trail comm.Paramedic truma first aid kit,fire supression kit.09 horizon trailer,Warn 9000 winch. Helton heat exchanger,Lowrance chart plotter,David Clark head set for radios. KI6IGN

  10. #10
    Join Date
    Mar 2008
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    On the smaller cargo trailer design I'm working on, I'm planningon a 4x6 box, with the tailgate left down when hauling bikes since they are usually about 7 feet long. One aspect I haven't figured out is the tie downs. When I put 2 bikes in my current trailer, the outside tiedowns from the handlebars are nearly vertical down, and don't work so well. I like the "wings" you built out the sides. But I'm not sure how I could incorporate that on a box trailer. If I did something, I'd like them to be removable. I wonder if I could put "wings" that slide into the top rail tube.

    One thing you might want to think about: On my trailer, I have a 12" section of aluminum U-channel I can screw on the deck at the back. Keeps the back tires from sliding around.

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